Metalized holographic RFID device and method

Abstract

The integration of metalized holograms with RFID antennas provides improved security and communication reliability, particularly for secure ID credential applications. A metalized hologram may be integrated with an RFID antenna, a substrate layer, an RFID chip electrically connected to the antenna, and a protective layer. The substrate layer may include printed identification information for various secure identification cards. The metalized hologram may form part or all of the RFID antenna, or may modify an impedance associated with the RFID antenna. The metalized hologram may include a patterned metalized layer and a holographic image layer, and a modification of the metalized hologram may modify or reduce a resonance frequency or radiation pattern of the RFID antenna. A tamper detection circuit may be used to detect impedance changes and provide a tamper indication, such as in response to an RFID query of an RFID credential.

Description

5486.008W01METALIZED HOLOGRAPHIC RFID DEVICE AND METHODTECHNICAL FIELD

[0001] Embodiments described herein generally relate to radio frequency identification (RFID) technology, specifically integrating RFID tags with user identification (ID) credentials.BACKGROUND

[0002] There is increased use of metalized holograms used in the credentials industry, where the metalized holograms may be used to verify the authenticity of a credential. However, metalized holograms may reduce or prevent communication of RFID data between an RFID credential and an RFID reader. Conventional solutions to incorporating metalized holograms with RFID credentials includes providing substantial spatial separation or radio frequency (RF) shielding between the metalized hologram and an RFID antenna to avoid RF interference. However, providing substantial spatial separation or RF shielding requires additional surface area or additional material layers, leading to increased manufacturing complexity and costs.BRIEF SUMMARY

[0003] The following presents a simplified summary of one or more embodiments of the present disclosure to provide a basic understanding of such embodiments. This summary is not an extensive overview of all contemplated embodiments, and is intended to neither identify key or critical elements of all embodiments, nor delineate the scope of any or all embodiments.

[0004] The integration of metalized holograms with RFID antennas provides improved security and communication reliability, particularly for secure ID credential applications. A metalized hologram may be integrated with an RFID antenna, a substrate layer, an RFID chip electrically connected to the antenna, and a protective layer. The substrate layer may include printed identification information for various secure identification cards. The metalized hologram may form part or all of the RFID antenna, or may modify an impedance associated with the RFID antenna. A dielectric layer may be disposed between the metalized hologram and antenna. The metalized hologram may include a patterned metalized layer and a holographic image layer, and a modification of the metalized hologram may modify or reduce a resonance frequency or radiation pattern of the RFID antenna. A5486.008W01 tamper detection circuit may be used to detect impedance changes and provide a tamper indication, such as in response to an RFID query of an RFID credential. The RFID antenna may operate within RFID HF frequency ranges (e.g., frequencies centered around 13.56 MHz, typically between 3 MHz and 30 MHz) and RFID UHF frequency ranges (e.g., frequencies centered around 433 MHz, typically between 300 MHz and 3 GHz).

[0005] While multiple embodiments are disclosed, still other embodiments of the present disclosure will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments of the subject matter. As will be realized, the various embodiments of the present disclosure are capable of modifications in various obvious aspects, all without departing from the scope of the present disclosure. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not restrictive.BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. Like numerals that have different letter suffixes may represent different instances of similar components. Some embodiments are illustrated by way of example, and not limitation, in the figures of the accompanying drawings:

[0007] FIG. l is a diagram illustrating an RFID-enabled identification card system.

[0008] FIG. 2 is a layered structure diagram illustrating the various components of the system.

[0009] FIG. 3 is a diagram of a tamper-resistant RFID holographic identification card system.

[0010] FIG. 4 is a flowchart illustrating a method for holographic RFID for identification documents.DETAILED DESCRIPTION

[0011] The metalized holographic RFID credential systems and methods described herein provide technical solutions addressing technical problems facing secure ID credential applications. These solutions include integration of metalized holograms with RFID antennas in secure ID credentials, which provides improved security and communication reliability. This provides improvements over solutions that seek to reduce RF interference by using physical separation or RF insulation to separate metalized holograms from RFID antennas.5486.008W01The metalized holographic RFID credential combines the security features of holograms with the functionality of RFID systems within an integrated solution, which may include using the metalized hologram as part of the RFID antenna, or modifying the RFID antenna impedance through inductive coupling with the metalized hologram. The metalized holographic RFID credential further provides improved security of the ID credential documents by making them tamper-evident, where a modification of a hologram (e.g., removing a hologram from a first credential and placing the hologram on a counterfeit credential) may modify or prevent RFID communication.

[0012] The metalized holographic RFID credential may include several integrated components, including a metalized hologram integrated with an RFID antenna, a substrate layer, an RFID chip, and a protective layer. The metalized hologram may form a part of the RFID antenna, or may be used to modify the RFID antenna impedance. The substrate layer may provide a support for the metalized hologram and RFID antenna, providing structural integrity and alignment of the components. An RFID chip may be electrically connected to the RFID antenna, enabling receipt of RFID interrogation signals (e.g., power, data) and transmission of RFID interrogation responses. The protective layer may cover the metalized hologram and RFID antenna, reducing or minimizing physical damage or ingress of environmental factors (e.g., moisture, dust) while improving integrity of the metalized holographic RFID credential.

[0013] In an example, the metalized holographic RFID credential may include a conductively coupled solution in which the metalized hologram forms part or all of the RFID antenna. In this example, the metalized layer of the hologram may be patterned to function as an RFID antenna, providing electrical connectivity and RFID antenna functionality. A subset of the metalized layer may be designated for connecting an RFID chip, providing electrical connections between the RFID chip and the RFID antenna. In another example, the metalized hologram and RFID antenna may be separate but inductively coupled to provide a predetermined RFID antenna impedance. This configuration provides tamper-resistant features, where any tampering with the metalized hologram affects the RFID functionality.

[0014] FIG. l is a diagram illustrating a holographic RFID ID card credential system 100. The holographic RFID ID card credential system 100 may include an RFID-enabled identification card 105 capable of storing data and transmitting data wirelessly to an RFID reader device 150. The RFID identification card system 100 may be used for secure access, identification, and / or authentication purposes.5486.008W01

[0015] As illustrated in FIG. 1, the RFID-enabled identification card 105 may include various human-readable and RFID-specific identification features. The RFID-enabled identification card 105 may include a passport, an ID card, a driver’s license card, a state- issued ID, a secure access card, or another identification card or identification document. The RFID-enabled identification card 105 may include an identification card photo and personally identifiable information 110, which may be used by security personnel to verify a user identity.

[0016] The RFID-enabled identification card 105 may include one or more holographic or non-holographic RFID features. The RFID-enabled identification card 105 may include a first RFID holographic element 115, which may include a hologram and an inductively or conductively coupled RFID antenna. The RFID-enabled identification card 105 may include an identification card barcode 120, which may include metalized elements and an inductively or conductively coupled RFID antenna. The RFID-enabled identification card 105 may include an RFID holographic seal 125, which may include a hologram and an inductively or conductively coupled RFID antenna. The RFID-enabled identification card 105 may include an RFID holographic border 130 surrounding a portion or all of RFID- enabled identification card 105, which may be inductively or conductively coupled to an RFID antenna. The RFID-enabled identification card 105 may include a second RFID holographic element 135, which may also be inductively or conductively coupled to an RFID antenna.

[0017] In an example, one or more of the first RFID holographic element 115, the identification card barcode 120, the RFID holographic seal 125, the RFID holographic border 130, and the second RFID holographic element 135 may include a separate RFID antenna inductively or conductively coupled to corresponding conductive elements (e.g., hologram, barcode). In an example, one or more of the first RFID holographic element 115, the identification card barcode 120, the RFID holographic seal 125, the RFID holographic border 130, and the second RFID holographic element 135 includes conductive elements inductively or conductively coupled to a credential RFID antenna 140. Each of the first RFID holographic element 115, the identification card barcode 120, the RFID holographic seal 125, and the second RFID holographic element 135 may include a circular, elliptical, rectangular, or other shape.

[0018] The various RFID features of the RFID-enabled identification card 105 may form at least a portion of an RFID antenna or modify the impedance of the RFID antenna. In an example, one or more of the holographic elements in the RFID-enabled identification card5486.008W01105 may include a plurality of holographic reflective elements patterned to enable visual confirmation of authenticity. The various RFID features may provide additional security features, such as providing a security officer the ability to scan a barcode, scan a seal, or visually inspect a hologram. Alteration of the holographic elements may reduce or minimize the ability of a corresponding RFID antenna to function correctly, such as by causing a change in a resonance frequency or radiation pattern of a corresponding RFID antenna.

[0019] The various RFID features of the RFID-enabled identification card 105 may extend across a subset of or a substantial portion of a holographic feature or across a substantial portion of the RFID-enabled identification card 105. In an example, a metalized hologram feature and RFID antenna may be substantially coextensive, and modification or removal of the metalized hologram may result in removal of at least a portion of the RFID antenna. The RFID-enabled identification card 105 may further include RFID tamper detection circuitry to detect changes in impedance of the RFID antenna, such as in response to a modification or removal of the metalized hologram. In an example, the RFID tamper detection circuitry may detect a change in RFID antenna impedance, and may generate an indication of impedance changes in response to an RFID interrogation.

[0020] An RFID reader device 150 may be configured to communicate with the RFID-enabled identification card 105. In an example, the RFID reader device 150 may interrogate the RFID-enabled identification card 105 by sending energy and an RFID interrogation data set, such as by sending energy and an RFID interrogation data set from the RFID reader device 150 through a reader RFID antenna 145 to credential RFID antenna 140 or to one or more other RFID antennas on or within RFID-enabled identification card 105. In response to the interrogation, the RFID-enabled identification card 105 may send an RFID interrogation response data set, such as sending an interrogation response data set from from credential RFID antenna 140 through reader RFID antenna 145 to RFID reader device 150. The RFID reader device 150 may be connected to an RFID server 160, which processes the received RFID interrogation response data set. The RFID reader device 150 may include a handheld RFID reader, a fixed RFID reader, a mobile RFID reader, or another RFID reader. The RFID server 160 manages the data received from the RFID reader device 150, providing secure ID processing and storage. The RFID server 160 may include a dedicated RFID server, a cloud-based RFID management system, an integrated RFID data processing system, or another RFID server. The RFID reader device 150 and the RFID server 160 may include separate devices or may be combined in a single device (e.g., a singe RFID reader device).5486.008W01

[0021] FIG. 2 is a layered structure diagram illustrating the layers 200 of a metalized holographic RFID credential, such as RFID-enabled identification card 105. The metalized holographic RFID credential layers 200 may include a substrate 210, an RFID layer 220, an adhesive layer 230, a metalized holographic layer 240, and a protective layer 250. The substrate 210 may include a base layer on which the other layers are disposed. The substrate 210 may include printed identification information associated with various types of identification or access cards. The identification information may include a photo ID, personally identifiable information, or other identification information.

[0022] One or more of the RFID layer 220 and the metalized holographic layer 240 may include a portion of an RFID antenna. In an example, a portion of an RFID antenna is included within the RFID layer 220, and another portion of the RFID antenna is included within the metalized holographic layer 240. A first portion of an RFID antenna within the RFID layer 220 may be conductively or inductively coupled to a second portion of the RFID antenna within the metalized holographic layer 240. In an example, a first portion of an RFID antenna within the RFID layer 220 is conductively coupled through a conductive trace 245 to a second portion of the RFID antenna within the metalized holographic layer 240. The conductive trace 245 may enable the metalized holographic layer 240 to form part of an RFID antenna or modify the RFID antenna impedance through a combination of conductive and inductive coupling.

[0023] The RFID layer 220 may include RFID circuitry (e.g., an RFID chip). The RFID circuitry may provide an identification data set in response to an RFID interrogation. The RFID layer 220 may include circuitry to detect changes in impedance of the RFID antenna. The impedance-detection circuitry may generate an indication of impedance changes in response to an RFID interrogation.

[0024] The adhesive layer 230 may include a dielectric layer that bonds the RFID layer 220 to the metalized holographic layer 240. In an example, the adhesive layer 230 may include adhesive properties that cause removal or destruction of at least a portion of an RFID antenna in response to tampering with the metalized holographic layer 240. The protective layer 250 may provide a covering that protects the underlying components from physical damage, environmental factors, or tampering. The metalized holographic layer 240 may include a plurality of holographic reflective elements patterned to enable visual confirmation of authenticity. The metalized holographic layer 240 may be patterned during deposition to display a predetermined holographic pattern, and may form at least part of the RFID antenna.5486.008W01

[0025] FIG. 3 is a diagram of a tamper-resistant RFID holographic identification card system 300. The tamper-resistant RFID holographic identification card system 300 includes a tamper-resistant identification card 310. The tamper-resistant identification card 310 may include an ID card such as a passport, an identification card, a license card, a secure access card, or another identification card or identification document. The tamper-resistant identification card 310 may be equipped with one or more RFID holographic elements 320. An RFID holographic element 320 may be disposed on a substrate layer of the identification card 310 and covered by a protective layer to prevent damage and tampering. The RFID holographic element 320 may include both RFID functionality and holographic features to provide RFID and visual security measures. The visual security measures may include a plurality of holographic reflective elements patterned to enable visual confirmation of authenticity, providing an additional layer of security. The holographic elements of the RFID holographic element 320 may include metalized holograms that form a part of or modify the impedance of the RFID antenna.

[0026] In the example shown in FIG. 3, an unauthorized user may tamper with the tamper-resistant identification card 310. The tampering may include using a precision utility knife 330 or other implement to modify or remove the RFID holographic element 320, such as to remove the RFID holographic element 320 and place it on another ID card. When the RFID holographic element 320 is modified, the modification causes a removal or modification of at least a portion of the RFID antenna. The modification changes a resonance frequency or radiation pattern of the RFID antenna, which may reduce or minimize the ability of the RFID holographic element 320 to respond to an RFID interrogation. The RFID holographic element 320 may also include tamper detection circuitry that generates a tamper indication and provides the tamper indication in response to an RFID interrogation, such as in response to a detection of a changed RFID impedance. The tamper detection circuitry may be configured to render the tamper-resistant identification card 310 inoperative in response to detecting tampering.

[0027] FIG. 4 is a flowchart illustrating a method 400 for holographic RFID for identification documents. At step 410, method 400 includes providing a document substrate layer. The substrate layer may provide a support for a metalized hologram and RFID antenna, providing structural integrity and alignment of the components. At step 420, method 400 includes disposing a conductive RFID antenna layer on the document substrate layer. The conductive RFID antenna layer may include a conductive RFID antenna and RFID circuitry configured to provide an identification data set in response to an RFID interrogation.5486.008W01At step 430, method 400 may include disposing a metalized holographic layer on a conductive RFID antenna layer. The metalized holographic layer may form at least part of an RFID antenna structure associated with the conductive RFID antenna. At step 440, method 400 may include disposing a protective layer on the metalized holographic layer. The conductive RFID antenna layer may be inductively coupled to the metalized holographic layer.

[0028] Method 400 may include disposing a dielectric layer between the conductive RFID antenna layer and the metalized holographic layer. The dielectric layer may include an adhesive dielectric layer, where the adhesive dielectric layer causes a removal of at least a portion of the conductive RFID antenna layer in response to a removal or modification of the metalized holographic layer. The conductive RFID antenna layer may be conductively coupled to the metalized holographic layer.

[0029] The metalized holographic layer includes a metalized reflective layer and a holographic image layer. The holographic image layer may include a recording layer (e.g., photographic film, photopolymer film) and a metallic coating, where the metallic coating may serve as a reflective layer that improves the visibility of the recording layer. The metalized reflective layer may be applied to the surface of the holographic image layer opposite from the surface to be viewed (e.g., opposite from a protective layer), and may improve reflectivity of the hologram and improve visibility of a reconstructed image. One or more of the metallic coating and the metalized reflective layer may form part or all of an RFID antenna structure, and may include being conductively or inductively coupled to a separate RFID antenna. The separate RFID antenna may be coextensive with (e.g., overlapping) the metalized holographic layer or may be a separate structure in a different region of a credential card.

[0030] The metalized holographic layer may be configured such that an alteration of the holographic image layer prevents the RFID antenna structure from providing the identification data set in response to the RFID interrogation. The alteration of the holographic image layer may cause a modification of at least one of an RFID antenna resonance frequency or an RFID antenna radiation pattern. The holographic image layer may include a plurality of holographic reflective elements that are patterned to reflect light in predetermined holographic pattern to enable a visual confirmation of a document authenticity. The metalized holographic layer may be patterned during deposition to display the predetermined holographic pattern and to form at least part of the RFID antenna structure.5486.008W01

[0031] The conductive RFID antenna layer may include antenna change detection circuitry to detect changes in an impedance of the conductive RFID antenna layer and generate a changed impedance indication in response to the RFID interrogation. The document substrate layer may include printed identification information associated with at least one of a passport, an identification (ID) card, a license card, a secure access card, or another identification card or identification document. The RFID antenna structure may be tuned to operate within at least one of high-frequency (HF) RFID frequency ranges or ultrahigh-frequency (UHF) RFID frequency ranges.

[0032] The conductive RFID antenna layer may extend across a substantial portion of the document substrate layer. Removal of the protective layer results in removal of at least a portion of the conductive RFID antenna layer. The metalized holographic layer and conductive RFID antenna layer may be substantially coextensive. Removal of the metalized holographic layer may result in removal of at least a portion of the conductive RFID antenna layer.Additional Examples

[0033] Example l is a device for holographic radio-frequency identification (RFID) for identification documents, the device comprising: a document substrate layer; a conductive RFID antenna layer disposed on the document substrate layer, the conductive RFID antenna layer including a conductive RFID antenna and RFID circuitry configured to provide an identification data set in response to an RFID interrogation; a metalized holographic layer disposed on the conductive RFID antenna layer, the metalized holographic layer forming at least part of an RFID antenna structure associated with the conductive RFID antenna; and a protective layer disposed on the metalized holographic layer.

[0034] In Example 2, the subject matter of Example 1 includes, wherein the conductive RFID antenna layer is inductively coupled to the metalized holographic layer.

[0035] In Example 3, the subject matter of Example 2 includes, a dielectric layer disposed between the conductive RFID antenna layer and the metalized holographic layer.

[0036] In Example 4, the subject matter of Example 3 includes, wherein: the dielectric layer includes an adhesive dielectric layer; and the adhesive dielectric layer causes a removal of at least a portion of the conductive RFID antenna layer in response to a removal or modification of the metalized holographic layer.

[0037] In Example 5, the subject matter of Examples 1-4 includes, wherein the conductive RFID antenna layer is conductively coupled to the metalized holographic layer.5486.008W01

[0038] In Example 6, the subject matter of Examples 1-5 includes, wherein: the metalized holographic layer includes a metalized reflective layer and a holographic image layer; and the holographic image layer forms at least part of the RFID antenna structure.

[0039] In Example 7, the subject matter of Example 6 includes, wherein the holographic image layer is configured such that an alteration of the holographic image layer prevents the RFID antenna structure from providing the identification data set in response to the RFID interrogation.

[0040] In Example 8, the subject matter of Example 7 includes, wherein the alteration of the holographic image layer causes a modification of at least one of an RFID antenna resonance frequency or an RFID antenna radiation pattern.

[0041] In Example 9, the subject matter of Examples 6-8 includes, wherein the holographic image layer includes a plurality of holographic reflective elements that are patterned to reflect light in predetermined holographic pattern to enable a visual confirmation of a document authenticity.

[0042] In Example 10, the subject matter of Example 9 includes, wherein the metalized holographic layer is patterned during deposition to display the predetermined holographic pattern and to form at least part of the RFID antenna structure.

[0043] In Example 11, the subject matter of Examples 1-10 includes, circuitry to: detect changes in an impedance of the conductive RFID antenna layer; and generate a changed impedance indication in response to the RFID interrogation.

[0044] In Example 12, the subject matter of Examples 1-11 includes, wherein the document substrate layer includes printed identification information associated with at least one of a passport, an identification (ID) card, a license card, or a secure access card.

[0045] In Example 13, the subject matter of Examples 1-12 includes, wherein the RFID antenna structure is tuned to operate within at least one of high-frequency (HF) RFID frequency ranges or ultra-high-frequency (UHF) RFID frequency ranges.

[0046] In Example 14, the subject matter of Examples 1-13 includes, wherein: the conductive RFID antenna layer extends across a substantial portion of the document substrate layer; and removal of the protective layer results in removal of at least a portion of the conductive RFID antenna layer.

[0047] In Example 15, the subject matter of Examples 1-14 includes, wherein: the metalized holographic layer and conductive RFID antenna layer are substantially coextensive; and removal of the metalized holographic layer results in removal of at least a portion of the conductive RFID antenna layer.5486.008W01

[0048] Example 16 is a method for holographic radio-frequency identification (RFID) for identification documents, the method comprising: providing a document substrate layer; disposing a conductive RFID antenna layer on the document substrate layer, the conductive RFID antenna layer including a conductive RFID antenna and RFID circuitry configured to provide an identification data set in response to an RFID interrogation; disposing a metalized holographic layer on the conductive RFID antenna layer, the metalized holographic layer forming at least part of an RFID antenna structure associated with the conductive RFID antenna; and disposing a protective layer on the metalized holographic layer.

[0049] In Example 17, the subject matter of Example 16 includes, wherein the conductive RFID antenna layer is inductively coupled to the metalized holographic layer.

[0050] In Example 18, the subject matter of Example 17 includes, disposing a dielectric layer between the conductive RFID antenna layer and the metalized holographic layer.

[0051] In Example 19, the subject matter of Example 18 includes, wherein: the dielectric layer includes an adhesive dielectric layer; and the adhesive dielectric layer causes a removal of at least a portion of the conductive RFID antenna layer in response to a removal or modification of the metalized holographic layer.

[0052] In Example 20, the subject matter of Examples 16-19 includes, wherein the conductive RFID antenna layer is conductively coupled to the metalized holographic layer.

[0053] In Example 21, the subject matter of Examples 16-20 includes, wherein: the metalized holographic layer includes a metalized reflective layer and a holographic image layer; and the holographic image layer forms at least part of the RFID antenna structure.

[0054] In Example 22, the subject matter of Example 21 includes, wherein the holographic image layer is configured such that an alteration of the holographic image layer prevents the RFID antenna structure from providing the identification data set in response to the RFID interrogation.

[0055] In Example 23, the subject matter of Example 22 includes, wherein the alteration of the holographic image layer causes a modification of at least one of an RFID antenna resonance frequency or an RFID antenna radiation pattern.

[0056] In Example 24, the subject matter of Examples 21-23 includes, wherein the holographic image layer includes a plurality of holographic reflective elements that are patterned to reflect light in predetermined holographic pattern to enable a visual confirmation of a document authenticity.5486.008W01

[0057] In Example 25, the subject matter of Example 24 includes, wherein the metalized holographic layer is patterned during deposition to display the predetermined holographic pattern and to form at least part of the RFID antenna structure.

[0058] In Example 26, the subject matter of Examples 16-25 includes, the conductive RFID antenna layer including antenna change detection circuitry to: detect changes in an impedance of the conductive RFID antenna layer; and generate a changed impedance indication in response to the RFID interrogation.

[0059] In Example 27, the subject matter of Examples 16-26 includes, wherein the document substrate layer includes printed identification information associated with at least one of a passport, an identification (ID) card, a license card, or a secure access card.

[0060] In Example 28, the subject matter of Examples 16-27 includes, wherein the RFID antenna structure is tuned to operate within at least one of high-frequency (HF) RFID frequency ranges or ultra-high-frequency (UHF) RFID frequency ranges.

[0061] In Example 29, the subject matter of Examples 16-28 includes, wherein: the conductive RFID antenna layer extends across a substantial portion of the document substrate layer; and removal of the protective layer results in removal of at least a portion of the conductive RFID antenna layer.

[0062] In Example 30, the subject matter of Examples 16-29 includes, wherein: the metalized holographic layer and conductive RFID antenna layer are substantially coextensive; and removal of the metalized holographic layer results in removal of at least a portion of the conductive RFID antenna layer.

[0063] Example 31 is at least one machine-readable medium including instructions that, when executed by processing circuitry, cause the processing circuitry to perform operations to implement of any of Examples 1-30.

[0064] Example 32 is an apparatus comprising means to implement of any of Examples 1-30.

[0065] Example 33 is a system to implement of any of Examples 1-30.

[0066] Example 34 is a method to implement of any of Examples 1-30.Additional Notes

[0067] The above detailed description includes references to the accompanying drawings, which form a part of the detailed description. The drawings show, by way of illustration, specific embodiments that may be practiced. These embodiments may also be referred to herein as “examples.” Such embodiments or examples can include elements in5486.008W01 addition to those shown or described. However, the present inventors also contemplate examples in which only those elements shown or described are provided. Moreover, the present inventors also contemplate examples using any combination or permutation of those elements shown or described (or one or more aspects thereof), either with respect to a particular example (or one or more aspects thereof), or with respect to other examples (or one or more aspects thereof) shown or described herein. That is, the above-described embodiments or examples or one or more aspects, features, or elements thereof may be used in combination with each other.

[0068] In the foregoing description various embodiments of the present disclosure have been presented for the purpose of illustration and description. They are not intended to be exhaustive or to limit the subject matter to the precise form disclosed. Obvious modifications or variations are possible considering the above teachings. The various embodiments were chosen and described to provide the best illustration of the principals of the disclosure and their practical application, and to enable one of ordinary skill in the art to use the various embodiments with various modifications as are suited to the particular use contemplated. All such modifications and variations are within the scope of the present disclosure as determined by the appended claims when interpreted in accordance with the breadth they are fairly, legally, and equitably entitled.

Claims

5486.008W01CLAIMSWhat is claimed is:

1. A device for holographic radio-frequency identification (RFID) for identification documents, the device comprising: a document substrate layer; a conductive RFID antenna layer disposed on the document substrate layer, the conductive RFID antenna layer including a conductive RFID antenna and RFID circuitry configured to provide an identification data set in response to an RFID interrogation; a metalized holographic layer disposed on the conductive RFID antenna layer, the metalized holographic layer forming at least part of an RFID antenna structure associated with the conductive RFID antenna; and a protective layer disposed on the metalized holographic layer.

2. The device of claim 1, wherein the conductive RFID antenna layer is inductively coupled to the metalized holographic layer.

3. The device of claim 2, further including a dielectric layer disposed between the conductive RFID antenna layer and the metalized holographic layer.

4. The device of claim 3, wherein: the dielectric layer includes an adhesive dielectric layer; and the adhesive dielectric layer causes a removal of at least a portion of the conductive RFID antenna layer in response to a removal or modification of the metalized holographic layer.

5. The device of claim 1, wherein the conductive RFID antenna layer is conductively coupled to the metalized holographic layer.

6. The device of claim 1, wherein: the metalized holographic layer includes a metalized reflective layer and a holographic image layer; and the holographic image layer forms at least part of the RFID antenna structure.5486.008W017. The device of claim 6, wherein the holographic image layer is configured such that an alteration of the holographic image layer prevents the RFID antenna structure from providing the identification data set in response to the RFID interrogation.

8. The device of claim 7, wherein the alteration of the holographic image layer causes a modification of at least one of an RFID antenna resonance frequency or an RFID antenna radiation pattern.

9. The device of claim 6, wherein the holographic image layer includes a plurality of holographic reflective elements that are patterned to reflect light in predetermined holographic pattern to enable a visual confirmation of a document authenticity.

10. The device of claim 9, wherein the metalized holographic layer is patterned during deposition to display the predetermined holographic pattern and to form at least part of the RFID antenna structure.

11. The device of claim 1, further including circuitry to: detect changes in an impedance of the conductive RFID antenna layer; and generate a changed impedance indication in response to the RFID interrogation.

12. The device of claim 1, wherein the document substrate layer includes printed identification information associated with at least one of a passport, an identification (ID) card, a license card, or a secure access card.

13. The device of claim 1, wherein the RFID antenna structure is tuned to operate within at least one of high-frequency (HF) RFID frequency ranges or ultra-high-frequency (UHF) RFID frequency ranges.

14. The device of claim 1, wherein: the conductive RFID antenna layer extends across a substantial portion of the document substrate layer; and removal of the protective layer results in removal of at least a portion of the conductive RFID antenna layer.5486.008W0115. The device of claim 1, wherein: the metalized holographic layer and conductive RFID antenna layer are substantially coextensive; and removal of the metalized holographic layer results in removal of at least a portion of the conductive RFID antenna layer.

16. A method for holographic radio-frequency identification (RFID) for identification documents, the method comprising: providing a document substrate layer; disposing a conductive RFID antenna layer on the document substrate layer, the conductive RFID antenna layer including a conductive RFID antenna and RFID circuitry configured to provide an identification data set in response to an RFID interrogation; disposing a metalized holographic layer on the conductive RFID antenna layer, the metalized holographic layer forming at least part of an RFID antenna structure associated with the conductive RFID antenna; and disposing a protective layer on the metalized holographic layer.

17. The method of claim 16, wherein the conductive RFID antenna layer is inductively coupled to the metalized holographic layer.

18. The method of claim 17, further including disposing a dielectric layer between the conductive RFID antenna layer and the metalized holographic layer.

19. The method of claim 18, wherein: the dielectric layer includes an adhesive dielectric layer; and the adhesive dielectric layer causes a removal of at least a portion of the conductive RFID antenna layer in response to a removal or modification of the metalized holographic layer.

20. The method of claim 16, wherein the conductive RFID antenna layer is conductively coupled to the metalized holographic layer.

21. The method of claim 16, wherein:5486.008W01 the metalized holographic layer includes a metalized reflective layer and a holographic image layer; and the holographic image layer forms at least part of the RFID antenna structure.

22. The method of claim 21, wherein the holographic image layer is configured such that an alteration of the holographic image layer prevents the RFID antenna structure from providing the identification data set in response to the RFID interrogation.

23. The method of claim 22, wherein the alteration of the holographic image layer causes a modification of at least one of an RFID antenna resonance frequency or an RFID antenna radiation pattern.

24. The method of claim 21, wherein the holographic image layer includes a plurality of holographic reflective elements that are patterned to reflect light in predetermined holographic pattern to enable a visual confirmation of a document authenticity.

25. The method of claim 24, wherein the metalized holographic layer is patterned during deposition to display the predetermined holographic pattern and to form at least part of the RFID antenna structure.

26. The method of claim 16, the conductive RFID antenna layer including antenna change detection circuitry to: detect changes in an impedance of the conductive RFID antenna layer; and generate a changed impedance indication in response to the RFID interrogation.

27. The method of claim 16, wherein the document substrate layer includes printed identification information associated with at least one of a passport, an identification (ID) card, a license card, or a secure access card.

28. The method of claim 16, wherein the RFID antenna structure is tuned to operate within at least one of high-frequency (HF) RFID frequency ranges or ultra-high-frequency (UHF) RFID frequency ranges.

29. The method of claim 16, wherein:5486.008W01 the conductive RFID antenna layer extends across a substantial portion of the document substrate layer; and removal of the protective layer results in removal of at least a portion of the conductive RFID antenna layer.

30. The method of claim 16, wherein: the metalized holographic layer and conductive RFID antenna layer are substantially coextensive; and removal of the metalized holographic layer results in removal of at least a portion of the conductive RFID antenna layer.

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