Electronic apparatus and its control method, and accessory and its control method
US12265316B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2023 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Jul 7, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0514
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An accessory includes a plurality of communication contacts that includes a first contact, and a control unit that notifies an electronic apparatus of a communication request by changing a signal level of the first contact from a first signal level to a second signal level different from the first signal level, and transmits information indicating a communication factor in response to a reception of a request for the information indicating the communication factor in response to a notification of the communication request. In a case where the control unit notifies the electronic apparatus of the communication request via the first contact in response to a start of a power supply, the control unit performs predetermined communication without receiving the request for the information indicating the communication factor or transmitting the information indicating the communication factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.