Unlock instant, AI-driven research and patent intelligence for your innovation.

User interface unit, smart card and manufacturing method

A user interface and smart card technology, applied in electrical components, record carriers used by machines, instruments, etc., can solve the problem of increasing manufacturing costs, reducing the practicality of user interfaces, and the sensor structure of double-sided lining does not support economical lining, etc. question

Active Publication Date: 2018-07-20
NXP BV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a two-layer liner with VIA may be required, which increases manufacturing cost and reduces the utility of the user interface
Additionally, sensor structures that require double-sided liners may not support economical liners such as those produced by silver ink printing, which is often required by some smart card manufacturers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • User interface unit, smart card and manufacturing method
  • User interface unit, smart card and manufacturing method
  • User interface unit, smart card and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] According to the present disclosure, a user interface unit of a smart card is provided. The user interface unit includes a two-dimensional array of capacitive sensors. A capacitive sensor array includes an array of angular sensor elements, each angular sensor element including a capacitor over its area. Corresponding capacitors of adjacent angle sensor elements in each dimension extend towards each other such that at least one intermediate region is defined between adjacent angle sensor elements. Furthermore, the area of ​​each intermediate region covered by a corresponding capacitor has a corresponding fixed ratio. For example, if the dimensions of the capacitive sensor array are 2 by 2 sensor elements, the ratio of the intermediate region defined by the upper two sensor elements extending towards each other may be 50:50. Thus, a "hardware weighting" function can be applied to the signal produced by the sensor elements, where the ratio 50:50 actually represents a wei...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A user interface unit for a smart card is disclosed, the user interface unit comprising a two-dimensional capacitive sensor array, wherein the capacitive sensor array comprises an array of corner sensor elements, each corner sensor element comprising a capacitor over its area , wherein corresponding capacitors of adjacent angle sensor elements in each dimension extend towards each other so as to define at least one intermediate region between them, the area of ​​each intermediate region covered by the corresponding capacitor having a corresponding fixed ratio. Furthermore, a corresponding smart card and a method of manufacturing a user interface unit of the smart card are also disclosed.

Description

technical field [0001] The present disclosure relates to a user interface unit for a smart card. Furthermore, the present disclosure relates to a corresponding smart card and a method of manufacturing a user interface unit for a smart card. Background technique [0002] Smart cards are currently widely used in social activities. For example, smart cards can be used as electronic identity (eID) cards. However, the user end's acceptance of this eID card is still relatively low. Although eID cards are relatively secure due to their cryptographic capabilities, they are usually provided with a user interface suitable for entering user credentials (ie a so-called "authentication interface"). Consequently, most eID users still enter their PIN codes via PCs and laptops, increasing the risk of their credentials being intercepted by malware such as Trojans and key-logger programs. [0003] It is known to integrate authentication interfaces into smart cards. For example, EP2667156...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044G06F3/0488
CPCG06F3/044G06K19/07709G07F7/0873H03K17/9622H03K2017/9602G06F1/16G06F2203/04103G06K19/07783G07F7/1008
Inventor 托马斯·苏瓦尔德
Owner NXP BV