28results about "Eavesdropping prevention circuits" patented technology

The application discloses a vehicle-mounted voice private call method, device and equipment, and relates to the technical field of vehicle-mounted communication, which comprises the following steps: analyzing a voice signal collected by a microphone array, accurately identifying the position of a caller who initiates a private call and a target object of the call, and then determining the specific target position of the target object in the vehicle based on the target object; and an audio routing controller dynamically establishes a point-to-point private audio transmission channel between a wearable noise canceller and a headrest loudspeaker according to the position of the caller and the target position, so that the private voice is limited in a closed loop link formed by the wearable noise canceller and the headrest loudspeaker of the specified call parties at the physical level, and acoustic diffusion of the voice to other areas of the vehicle cabin is fundamentally inhibited.

An embodiment of this application discloses an electronic device and a related sound leakage prevention method. The electronic device includes an audio processing unit, a first-type array element, and a second-type array element. The audio processing unit is configured to receive an initial audio signal and determine a first-type audio signal and a second-type audio signal based on the initial audio signal, where the first-type audio signal includes M first audio signals and the second-type audio signal includes N second audio signals. The audio processing unit is configured to transmit the first-type audio signal to the first-type array element and the second-type audio signal to the second-type array element. The first-type array element is configured to output M first sound wave signals based on the corresponding first audio signals. The second-type array element is configured to output N second sound wave signals based on the corresponding second audio signals. The N second sound wave signals are used to superimpose and cancel the M first sound wave signals at multiple points within a first preset area. According to the embodiments of this application, when the electronic device is used for calling, a private call can be realized, thereby improving the user experience.

The application discloses a kind of parallel machine detection method and system for pcm telephone system, it is related to communication security technical field, comprising the following steps: S1, when telephone is first opened, collect the reference pressure difference between A-B line in hands-free state and off-hook state, and the reference pressure difference is stored as health profile data, constructs health profile;S2, actual pressure difference between A-B line is continuously detected in the process of talking, sampling frequency cannot be lower than 1 time per second, and real-time dynamic monitoring is carried out to pressure difference value.The parallel machine detection method and system for pcm telephone system proposed in the application, by constructing health profile when telephone is first opened, accurate reference is provided for subsequent detection, effectively distinguishes normal communication state and illegal parallel machine eavesdropping behavior, in the process of talking, system real-time dynamic monitoring pressure difference between A-B line, in combination with line abnormality detection, can accurately identify and shield the misjudgment caused by fault, improve the reliability of detection.

The invention discloses a wearable mobile phone reminding system based on radio frequency detection and Bluetooth information synchronization, and the system comprises a radio frequency detection module which is used for monitoring an incoming call signal of a mobile phone in an anti-eavesdropping box; the Bluetooth transmission assembly is used for being connected with a mobile phone to realize information interaction; the wearable terminal module is used for being connected with a mobile phone through a Bluetooth transmission assembly to achieve incoming call and notification reminding; the information buffering module is used for monitoring the notification message from the intelligent terminal through the Bluetooth transmission component, synchronizing the service and buffering and displaying the notification message in a queue form; the MCU component is used for carrying out data operation processing on the components; wherein the radio frequency detection module, the Bluetooth component, the wearable terminal module and the information buffer module are electrically connected with the MCU component. The method has the beneficial effects that a user can still know the state and key information of the mobile phone through the bracelet in an anti-monitoring environment; the user experience is not sacrificed while the privacy protection of the mobile phone is enhanced; joint transmission reminding of radio frequency signals and network information is realized; and OTA remote firmware upgrading is supported.

This application provides a microphone control system and an electronic device, and relates to the field of electronic technologies. The microphone control system includes an identity authentication module, a control module, a power supply module, and a microphone module that are sequentially connected. The identity authentication module is configured to: verify identity information of a user based on a trigger operation of the user, and send a switch signal to the control module after the verification succeeds. The control module is configured to control a power supply status of the power supply module based on the switch signal, where the power supply status includes a power-off state and a normal state. The power supply module is configured to supply power to the microphone module when being in the normal state. This can effectively resolve a technical problem that call content of the user is likely to leak.

The invention discloses a mobile phone incoming call reminding device based on radio frequency detection and LED lamp state switching. The anti-eavesdropping device is used for placing a mobile phone needing anti-eavesdropping; the radio frequency detection module is arranged in the anti-eavesdropping device and is used for monitoring whether a calling signal exists or not so as to distinguish an idle state, an incoming call state and an incoming call ending state; the state judgment module is arranged in the anti-eavesdropping device, is connected with the radio frequency detection module and is used for detecting the state of the mobile phone; and the LED indicating system is arranged on the anti-eavesdropping device, is connected with the state judgment module and is used for displaying the current state of the mobile phone. The anti-eavesdropping device has the beneficial effects that whether the mobile phone has an incoming call or not can be judged through the radio frequency detection module, and the communication state of the mobile phone can be reflected in real time through the state of an LED lamp; the incoming call state can be known through a visual means in a mobile phone anti-eavesdropping environment; and practicability is enhanced while an anti-monitoring function is kept.

The invention provides a microphone control system and electronic equipment, and relates to the technical field of electronics, the microphone control system comprises an identity authentication module, a control module, a power supply module and a microphone module which are connected in sequence; the identity authentication module is used for verifying the identity information of the user according to the triggering operation of the user and sending a switching signal to the control module after the verification is passed; the control module is used for controlling the power supply state of the power supply module according to the switching signal. The power supply state comprises a power-off state and a normal state. And the power supply module is used for supplying power to the microphone module in a normal state. The technical problem of easy leakage in a call of a user can be effectively solved.

Concepts and technologies are disclosed herein for seamless personal hotspot connectivity via personal hotspot tokens. According to one aspect disclosed herein, a personal hotspot-enabled device can include a processor and a memory. The memory can store instructions of an operating system and a personal hotspot application. The personal hotspot-enabled device can receive a personal hotspot token. The personal hotspot application can recognize, via a short-range communication component, a device identification associated with a peripheral device operating in proximity to the personal hotspot-enabled device. The personal hotspot application can request the personal hotspot token from the operating system. The personal hotspot application can inform the operating system of the device identification. The personal hotspot application can then receive the personal hotspot token associated with the device identification. The operating system can create a personal hotspot. The operating system can automatically authenticate the peripheral device to connect to the personal hotspot.

The invention discloses a radio frequency incoming call remote answering system based on signal relay, comprising: an incoming call detection module for performing time domain analysis on a mobile phone emission signal through a radio frequency technology in a shielding box, and judging whether an incoming call exists in combination with a high-frequency boundary filtering and burst packet statistical mode; the signal bridging module is used for transmitting the incoming call information to the relay communication module through a digital interface; a relay communication module; a virtual call terminal; a channel encryption mechanism; the power supply management system has a low-power-consumption wake-up mechanism and long-time endurance support, and is suitable for an outdoor environment or a high-safety place; the method has the advantages that communication safety is guaranteed, remote answering is achieved, and a mobile phone is prevented from being exposed; the system can be expanded to be used for military police, government, anti-monitoring and other high-security demand scenes; a user does not need to carry a main mobile phone, and convenience and privacy are enhanced.

Methods and devices for supporting charging relating to a group transmission in a wireless communication network. The group transmission involving a group of wireless devices configured to, via one or more direct communication links between each other, participate in transmission of user data between a source wireless device and the network. It is obtained, for each one of wireless devices of the group, a data amount indicator indicating how much data the wireless device has been involved in transmitting as part of the group transmission. It is provided one or more reports based on the obtained data amount indicators to one or more core network nodes.

The application relates to the technical field of anti-interception protection of hotel telephone sets, in particular to an anti-interception protection method, system and device applied to a hotel telephone set, which comprises the following steps: determining a link risk reference value at each moment based on the smoothness of all link risk indexes within a preset time length before each moment; determining a security threat index of hotel telephone set communication at each moment by analyzing abnormal conditions of the deviation between all link risk indexes and the link risk reference value within the preset time length before each moment and combining the link risk reference value, so that anti-interception protection is carried out on the hotel telephone set communication. The application solves the problem of incomplete encryption coverage of the traditional anti-interception mechanism and improves the anti-interception protection capability of the hotel telephone set communication process.

The invention discloses a parallel operation detection method and system for a pcm telephone system, and relates to the technical field of communication security, and the method comprises the following steps: S1, when a telephone is started for the first time, collecting a reference pressure difference value between A and B lines in a hands-free state and an off-hook state, storing the reference pressure difference value as health file data, and constructing a health file; and S2, continuously detecting an actual differential pressure value between the A-B lines in the call process, and dynamically monitoring the differential pressure value in real time when the sampling frequency is not lower than once per second. According to the parallel operation detection method and system for the PCM phone system, the health file is constructed when the phone is started for the first time, an accurate reference is provided for subsequent detection, a normal communication state and an illegal parallel operation eavesdropping behavior are effectively distinguished, in the conversation process, the system dynamically monitors the differential pressure value between the A-line and the B-line in real time, and in combination with line anomaly detection, the safety of the PCM phone system is improved. Misjudgment caused by faults can be accurately identified and shielded, and the detection reliability is improved.

To provide a terminal device that allows users of sound-emitting devices to easily understand the movement status of monitored devices. [Solution] The terminal device 100 according to this disclosure includes a receiving unit 101 that receives signals transmitted from another device equipped with an audio output unit, a sensor unit 102 that outputs displacement information indicating a change in the position or orientation of the device, a detection unit 103 that detects an abnormal state based on the signal strength or displacement information of the receiving unit 101, a generation unit 104 that generates an acoustic signal based on the displacement information when an abnormal state is detected by the detection unit 103, and a transmission unit 105 that transmits the acoustic signal generated by the generation unit 104 to another device. The generation unit 104 determines the movement state of the device based on the displacement information and generates a plurality of acoustic signals, each having at least one of the amplitude and frequency of the acoustic signal, corresponding to each of a plurality of movement states.

A system that has a protective cellular device case coupled to a cellular device and having a pocket formed by at least two layers of the protective cellular device case, the protective cellular device case further having an activation button. Further, the system has a printed circuit board (PCB) situated in a pocket formed between at least two layers of the protective cellular device case, the PCB having an oscillator and an actuator interface, the processor covers a camera and flash dock by actuating a cover via the actuator interface and interferes with microphones on the cellular device upon depression of an activation button.

The invention provides an encrypted call method and device, equipment and a storage medium, and relates to the technical field of communication, the method is applied to a calling terminal, and the method comprises the following steps: displaying a first interface, the first interface comprising a dialing control; in response to a touch operation for the dialing control, displaying a dialing interface, the dialing interface including an encrypted call control, and the encrypted call control being used for starting an encrypted call; and in response to a touch operation for the encrypted call control, performing an encrypted call with the called terminal. According to the scheme of the embodiment of the invention, the step of starting the encrypted call is simplified, and the efficiency of starting the encrypted call is improved.

Embodiments of this application disclose an electronic device and a related sound leakage prevention method. The electronic device includes an audio processing unit, a first-type array element, and a second-type array element. The audio processing unit is configured to: receive an initial audio signal, and determine a first-type audio signal and a second-type audio signal based on the initial audio signal, where the first-type audio signal includes M first audio signals, and the second-type audio signal includes N second audio signals; and send the first-type audio signal to the first-type array element, and send the second-type audio signal to the second-type array element. The first-type array element is configured to output M first sound wave signals based on the corresponding first audio signals. The second-type array element is configured to output N second sound wave signals based on the corresponding second audio signals. The N second sound wave signals are used for superimposition and cancellation with the M first sound wave signals at a plurality of location points in a first preset area. According to embodiments of this application, a private call can be implemented when an electronic device is used for a call, thereby improving user experience.

An electronic device includes an audio processing unit, a first-type array element, and a second-type array element. The audio processing unit is configured to: receive an initial audio signal, and determine a first-type audio signal and a second-type audio signal based on the initial audio signal, where the first-type audio signal includes M first audio signals, and the second-type audio signal includes N second audio signals. The audio processing unit is further configured to send the first-type audio signal to the first-type array element, and send the second-type audio signal to the second-type array element. The first-type array element is configured to output M first sound wave signals based on the corresponding first audio signals. The second-type array element is configured to output N second sound wave signals based on the corresponding second audio signals.

The application discloses an audio playing method and device, electronic equipment and storage medium, and belongs to the technical field of terminal control. The method is applied to the electronic equipment, and comprises the following steps: obtaining a target audio signal to be played; and playing the target audio signal through an audio playing module of the electronic equipment; wherein the audio playing module comprises at least two sound production units and at least two filters, each sound production unit is connected with a filter in correspondence, and the working coefficient of each filter is determined according to the maximum energy contrast of a test audio signal between a near-field propagation area and a far-field propagation area, and the distance between the near-field propagation area and the audio playing module is smaller than the distance between the far-field propagation area and the audio playing module. The application can reduce the signal leakage of the audio signal in the far-field propagation area, and improve the confidentiality of the audio signal.

A microphone control system and an electronic device, include an identity authentication module, a control module, a power supply module, and a microphone module that are sequentially connected. The identity authentication module is configured to verify identity information of a user based on a trigger operation of the user and send a switch signal to the control module after the verification succeeds. The control module is configured to control a power supply status of the power supply module based on the switch signal, where the power supply status includes a power-off state and a normal state. The power supply module is configured to supply power to the microphone module when being in the normal state.

Apparatuses, methods, and systems are disclosed for supporting TNGF reauthentication. One apparatus includes a network interface that communicates with a remote unit (i.e., UE) and with a mobile communication network. The apparatus includes a processor that receives a first EAP message containing a NAI from the UE. Here, the NAI indicates that the UE requests to reauthenticate with a source gateway function. The processor receives a UE context of the UE and derives a first EAP challenge packet using the UE context. Via the network interface, the processor sends the first EAP challenge packet to the UE. Here, the first EAP challenge packet is used to authenticate the target TNGF with the UE.

This invention provides a call recording method based on dual-track audio stream separation. Responding to a user-input recording command, it acquires first audio frame data from the sender and second audio frame data from the receiver. Iteratively, the first audio frame data is saved to a first user-mode temporary buffer, and the second audio frame data to a second user-mode temporary buffer. The first and second audio frame data are aligned and merged to obtain dual-channel merged stereo audio frame data, which is then saved to a user-mode aggregation buffer until recording ends. After saving the merged stereo audio frame data to the user-mode aggregation buffer, iteratively, the merged stereo audio frame data in the user-mode aggregation buffer is encrypted and written to disk for recording until recording ends. This method can distinguish the voice content of both parties in a call, solves the problems of audio frame data loss and incomplete recording files, and prevents recording data leakage.

The method provides an automated and scalable system for the generation, distribution, management of symmetric pre-shared keys (PSKs) to applications executing on headless and mobile devices. It helps achieve device protection, application security, and data protection with data authenticity and confidentiality in intra-device, inter-device, device-to-edge, and device-to-cloud communications. It helps Transport Layer Security (TLS) enabled applications dynamically acquire and renew PSKs and use identity hints for PSK based authentication ceremony during a TLS handshake. It helps client-server applications dynamically acquire and renew PSKs using keyed-hash message authentication code (HMAC) for data integrity and authenticity, content signing, and data encryption for confidentiality. It helps manage and distribute API shared secrets and API access tokens required for authenticated API requests and API security. It helps applications (producers, brokers, and consumers of content) with PSKs for supply chain tamper resistance. It helps real-time low-latency applications with selective encryption of partial messages.

The utility model relates to the technical field of audio equipment, in particular to an anti-eavesdropping device, which comprises a circuit board, a first connector, a second connector, an audio control circuit and a quick charge control circuit, the circuit board comprises a first end part, a central part and a second end part which are sequentially arranged along the length direction of the circuit board, and the first connector and the second connector are arranged on the central part and are oppositely arranged along the width direction of the circuit board; the audio control circuit is arranged on the first end part and is electrically connected with the first connector; the quick charge control circuit is arranged on the second end part and is electrically connected with the first connector and the second connector respectively; by designing the anti-eavesdropping device, the terminal is effectively prevented from eavesdropping a user, and the fast charging control circuit and the audio control circuit are respectively arranged at the two ends of the first connector and the second connector, so that the width of the device is reduced, the device is more convenient to use after being connected with the terminal, local overheating can be prevented, and the service life of the terminal is prolonged. Therefore, heat dissipation is faster and more uniform, and the system is more stable.

According to an embodiment, an electronic device may comprise at least one housing, at least one sensor, a memory, a first display visually exposed through a first portion of the at least one housing, a second display visually exposed through a second portion of the housing opposite to the first portion of the at least one housing, and at least one processor operatively connected to the at least one sensor, the memory, the first display and the second display. The at least one processor may, based on activation of the second display within a preset time after receiving a user input through a first user interface (UI) capable of executing at least one function of an application, displayed on the first display, identify whether a second UI capable of executing at least one function of the application is disposed on the second display, based on the second UI being disposed, display the second UI on the second display, and based on the second UI being not disposed, generate the second UI corresponding to the first UI based on a size of the second display and display the second UI on the second display.

A display device is disclosed. The display device of the present disclosure includes: a housing; a roller installed in the housing; a display unit rolled around or unrolled from the roller; a foldable link including a lower link having one side pivotally coupled to the housing, and an upper link having one side pivotally coupled to another side of the lower link and having another side pivotally coupled to an upper portion of the display unit; a motor installed adjacent to the lower link in the housing and configured to provide a driving force; a gear fixed to a driving shaft of the motor; and a link gear coupled to the lower link and engaged with the gear, wherein the lower link is eccentric to an axis of rotation of the link gear, to be coupled to the link gear.

The invention provides a protection device for preventing eavesdropping of a microphone of a mobile terminal, and the device comprises a connection joint which is used for being connected with an earphone interface of the mobile terminal, and the earphone interface is an interface capable of transferring the microphone function of the mobile terminal; the protection circuit is connected with the connection joint so as to be connected with an earphone interface of the mobile terminal through the connection joint, so that the mobile terminal transfers a microphone function to the connection joint through the earphone interface; wherein the protection circuit can remove the microphone function of the connection joint. The anti-eavesdropping device is simple in structure and low in cost, interference audios do not need to be sent through ultrasonic waves, a user is prevented from being exposed in an ultrasonic environment for a long time, the technical effects of reducing the anti-eavesdropping cost, improving the anti-eavesdropping effect and improving the user experience are achieved, the microphone function of the mobile terminal can disappear when the anti-eavesdropping device is connected with the earphone interface of the mobile terminal, and the user experience is improved. Macro eavesdropping of the mobile terminal is prevented, and the privacy security of the mobile terminal is protected.