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Electronic device and control method thereof

A technology of electronic devices and external devices, applied in the direction of circuit devices, battery circuit devices, safety communication devices, etc., can solve problems such as restrictions

Pending Publication Date: 2022-05-27
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a power supply unit that does not require an additional cable type does not support certified communication for a USB cable, a power supply unit that does not require an additional cable type cannot perform certified communication for a USB cable, and power supply for an additional cable type is never required Power supply from the device to the power receiving device may be unnecessarily limited

Method used

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  • Electronic device and control method thereof
  • Electronic device and control method thereof
  • Electronic device and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0014] [First Embodiment] figure 1 is a diagram for illustrating an example of the structure of the power supply system according to the first embodiment and the second embodiment.

[0015] like figure 1 As shown, the power supply system according to the first and second embodiments described herein includes a power supply device 100 and a power receiving device 300 capable of operating with power supplied from the power supply device 100 . Both the power supply device 100 and the power receiving device 300 are electronic devices conforming to the USB (Universal Serial Bus) PD (Power Delivery) standard and the USB Type-C standard.

[0016] The power supply device 100 is a power supply device with an integrated USB cable (hereinafter simply referred to as a cable) 120 . The power supply device 100 is, for example, an electronic device capable of functioning as a USB-AC adapter, a mobile battery, a personal computer, or a tablet computer.

[0017] Note that the power supply d...

no. 2 example

[0074] [Second Embodiment] According to the first embodiment, in the case where a communication whose destination is a cable is received before receiving a Vconn_Swap communication, the power supply device 100 simply does not respond to the communication, and does not perform any other operations. However, a power receiving device that performs communication destined for a cable without Vconn_Swap communication is not a device conforming to the USB PD standard. Therefore, in step S405, the PD communication unit 121 may notify the control unit 102 that the power receiving device does not conform to the USB PD standard. Then, upon receiving the notification, the control unit 102 may control the power supply unit 105 so as to limit the power supply to the power receiving device 300 .

[0075] For example, the control unit 102 may supply less power than the power supply started after the negotiation communication (step S304 ), or may stop power supply. Therefore, the power supply...

no. 3 example

[0078] [Third Embodiment] The various functions, processes, or methods described in the first and second embodiments can also be realized by a personal computer, a microcomputer, a CPU (Central Processing Unit), or a microprocessor executing a program. Hereinafter, in the third embodiment, a personal computer, a microcomputer, a CPU (Central Processing Unit), or a microprocessor is referred to as "computer X". In the third embodiment, a program for controlling the computer X and realizing various functions, procedures, or methods described in the first and second embodiments is referred to as "program Y".

[0079] Various functions, processes, or methods described in the first embodiment and the second embodiment are realized by the computer X executing the program Y. In this case, the program Y can be supplied to the computer X via a computer-readable storage medium. The computer-readable storage medium in the third embodiment includes at least one of a hard disk device, a m...

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Abstract

The invention provides an electronic device and a control method thereof. The electronic device has a cable including a storage component and a communication component. The storage unit stores first authentication information for authentication communication with respect to the electronic device and second authentication information for authentication communication with respect to the cable. The communication component is capable of responding to authentication communication for the electronic device and is also capable of responding to authentication communication for the cable.

Description

technical field [0001] Aspects of the present disclosure generally relate to electronic devices and methods of controlling the same. Background technique [0002] The USB (Universal Serial Bus) Type-C standard and the USB PD (Power Delivery) standard are well known as USB-related standards. The USB interface that complies with the USB PD standard can supply up to 100W of power. [0003] Japanese Patent Laid-Open No. 2018-097643 describes a power supply device that performs authentication communication with each of a power receiving device and a USB cable. [0004] Hereinafter, a power supply device having an integrated USB cable and a power supply device having a connector capable of being connected to a power receiving device without using a USB cable are collectively referred to as a type of power supply device that does not require an additional cable. [0005] Japanese Patent Laid-Open No. 2018-097643 does not envisage a power supply device of the type that does not re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/40H04L12/10
CPCH04L12/10H04L63/08H04L63/0823G06F13/382G06F2221/2129G06F21/44G06F21/81H02J7/00045H02J2207/30G06F1/266G06F1/263G06F2213/0042
Inventor 森友广志
Owner CANON KK