# US 11,115,650 B2 · System and method for monitoring video communication device

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- Number: US 11,115,650 B2
- Document ID: US11115650B2
- Status: Granted
- Kind: B2
- Application number: 16/780,906
- Filed: 2020-02-04
- Published: 2021-06-24
- Granted: 2021-09-07
- Earliest claimed: 2019-12-20
- Assignees: Acer Incorporated
- Applicants: Acer Incorporated
- Inventors: Ming-Feng Hsieh; Sheng-Yu Weng; Chun-Chih Kuo; Chih-Cheng Chen
- Web page: https://patentgrep.com/patent/US11115650B2

## CPC

- H04N 17/002: {for television cameras}
- G08B 7/06: using electric transmission {, e.g. involving audible and visible signalling through the use of sound and light sources}
- H04N 7/142: {Constructional details of the terminal equipment, e.g. arrangements of the camera and the display}
- H04N 7/147: {Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals (selecting H04Q)}
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS

## Abstract

A system and a method for monitoring a video communication device configured to monitor an activation state of a video capturing module are provided. A detection circuit is configured to detect an operation current input to the video capturing module. A control circuit is electrically connected to the detection circuit and determines whether the video capturing module is activated according to a magnitude of the operation current.

## Claims

### Claim 1

A system for monitoring a video communication device, the system comprising:
a video capturing module;
a detection circuit configured to detect an operation current input to the video capturing module; and
a control circuit electrically connected to the detection circuit and determining whether the video capturing module is activated according to a magnitude of the operation current,
wherein the video capturing module comprises:
the video communication device; and
a transmission interface configured to output video communication data generated by the video communication device,
wherein the control circuit periodically sends a request command to the transmission interface and determines a data traffic of the transmission interface according to a reply command transmitted back by the transmission interface,
wherein when the data traffic of the transmission interface increases, the control circuit determines that the video capturing module is activated.

### Claim 2 (depends on 1)

The system according to claim 1, wherein the detection circuit comprises an amplifier configured to amplify the operation current, and the control circuit determines whether the video capturing module is activated according to the amplified operation current.

### Claim 3 (depends on 2)

The system according to claim 2, wherein the control circuit comprises an analog-to-digital converter and a processor, the analog-to-digital converter receives the amplified operation current, and the processor determines whether the video capturing module is activated according to an output result of the analog-to-digital converter,
wherein when the processor determines that the video capturing module is activated, the processor controls an alert device to issue an alert signal.

### Claim 4 (depends on 1)

The system according to claim 1, further comprising:
a power module configured to provide the operation current; and
a switch circuit coupled between the power module and the video capturing module and selectively switched on or off according to an activation signal input by a user.

### Claim 5

A method for monitoring a video communication device, the method comprising:
detecting an operation current input to a video capturing module; and
determining whether the video capturing module is activated according to the operation current, and correspondingly issue an alert signal to notify a user that the video capturing module is activated,
wherein the video capturing module comprises:
the video communication device; and
a transmission interface configured to output video communication data generated by the video communication device,
wherein the video communication device periodically sends a request command to the transmission interface, and determines whether a data traffic of the transmission interface is changed according to a reply command transmitted back by the transmission interface, and
when the data traffic of the transmission interface increases, the control circuit determines that the video capturing module is activated.

### Claim 6

A system for monitoring a video communication device, the system comprising:
a video capturing module;
a power module configured to provide an operation current to the video capturing module;
a switch circuit coupled to the power module and the video capturing module, and selectively switched on or off according to an activation signal input by a user; and
a control circuit electrically connected to the switch circuit, and configured to determine whether the video capturing module is activated according to whether the switch circuit is switched on or off,
wherein the video capturing module comprises:
the video communication device; and
a transmission interface configured to output video communication data generated by the video communication device,
wherein the control circuit periodically sends a request command to the transmission interface, and determines whether a data traffic of the transmission interface is changed according to a reply command transmitted back by the transmission interface, and
when the data traffic of the transmission interface increases, the control circuit determines that the video capturing module is activated.

### Claim 7 (depends on 6)

The system according to claim 6, further comprising:
a detection circuit electrically connected to the control circuit and configured to detect the operation current input to the video capturing module,
wherein the control circuit further determines whether the video capturing module is activated according to a magnitude of the operation current.