US 2017/0289431 A1 · ACCESSORY APPARATUS, IMAGE-CAPTURING APPARATUS, CONTROL METHOD AND STORAGE MEDIUM STORING CONTROL PROGRAM

Abstract

The accessory apparatus includes an accessory communicator providing a notification channel (RTS), a first data communication channel (DCL) and a second data communication channel (DCL). The accessory controller transmits, in a transmission request receiving state of receiving a transmission request from an image-capturing apparatus through the notification channel, accessory data to the image-capturing apparatus through the first data communication channel, and receives camera data transmitted through the second data communication channel from the image-capturing apparatus in response to receiving the accessory data. The accessory controller stops, in the transmission request receiving state and during transmission of the accessory data to the image-capturing apparatus, in response to becoming a non-transmission request receiving state, transmitting the accessory data to the image-capturing apparatus.

Claims37

Dependent claims

An accessory apparatus detachably attachable to an image-capturing apparatus, the accessory apparatus comprising:

an accessory communicator configured to provide, with the image-capturing apparatus, three channels that are a notification channel used for providing a notice from the image-capturing apparatus to the accessory apparatus, a first data communication channel used for transmitting accessory data from the accessory apparatus to the image-capturing apparatus, and a second data communication channel used for transmitting camera data from the image-capturing apparatus to the accessory apparatus;
and
an accessory controller configured to:
in a transmission request receiving state of receiving a transmission request as the notice from the image-capturing apparatus through the notification channel, transmit the accessory data in frame units to the image-capturing apparatus through the first data communication channel;
and
receive the camera data in frame units transmitted through the second data communication channel from the image-capturing apparatus that is configured to transmit the camera data in response to receiving the accessory data in frame units,
wherein the accessory controller is configured to, in the transmission request receiving state and during transmission of the accessory data to the image-capturing apparatus, in response to becoming a non-transmission request receiving state of not receiving the transmission request from the image-capturing apparatus, stop transmitting the accessory data to the image-capturing apparatus.

4 more elements

An image-capturing apparatus to which an accessory apparatus is detachably attachable, the image-capturing apparatus comprising:

a camera communicator configured to provide, with the accessory apparatus, three channels that are a notification channel used for providing a notice from the image-capturing apparatus to the accessory apparatus, a first data communication channel used for transmitting accessory data from the accessory apparatus to the image-capturing apparatus, and a second data communication channel used for transmitting camera data from the image-capturing apparatus to the accessory apparatus;
and
a camera controller configured to:
become and keep a transmission request providing state of providing a transmission request as the notice to the accessory apparatus through the notification channel to thereby cause the accessory apparatus to transmit the accessory data in frame units to the image-capturing apparatus through the first data communication channel;
and
in response to receiving the accessory data in frame units from the accessory apparatus, transmit the camera data in frame units to the accessory apparatus through the second data communication channel,
wherein the camera controller is configured to become, from the transmission request providing state, a non-transmission request providing state of not providing the transmission request to the accessory apparatus to thereby cause the accessory apparatus to stop transmitting the accessory data to the image-capturing apparatus.

4 more elements

An image-capturing system comprising:

an image-capturing apparatus;
and
an accessory apparatus detachably attachable to the image capturing apparatus,
the image capturing apparatus and the accessory apparatus respectively comprising:
a camera communicator and an accessory communicator configured to provide three channels that are a notification channel used for providing a notice from the image-capturing apparatus to the accessory apparatus, a first data communication channel used for transmitting accessory data from the accessory apparatus to the image-capturing apparatus, and a second data communication channel used for transmitting camera data from the image-capturing apparatus to the accessory apparatus;
and
a camera controller configured to transmit the camera data and an accessory controller configured to transmit the accessory data,
wherein:
the camera controller is configured to:
become and keep a transmission request providing state of providing a transmission request as the notice to the accessory controller through the notification channel to thereby cause the accessory controller to transmit the accessory data in frame units through the first data communication channel;
in response to receiving the accessory data in frame units from the accessory controller, transmit the camera data in frame units to the accessory controller through the second data communication channel;
and
become, from the transmission request providing state, a non-transmission request providing state of not providing the transmission request to the accessory controller to thereby cause the accessory controller to stop transmitting the accessory data, and
wherein the accessory controller is configured to, in a transmission request receiving state of receiving the transmission request from the camera controller and during transmission of the accessory data to the camera controller, in response to becoming a non-transmission request receiving state of not receiving the transmission request from the camera controller, stop transmitting the accessory data to the camera controller.

11 more elements

An accessory apparatus detachably attachable to an image-capturing apparatus, the accessory apparatus comprising:

an accessory communicator configured to provide, with the image-capturing apparatus, three channels that are a notification channel used for providing a notice from the image-capturing apparatus to the accessory apparatus, a first data communication channel used for transmitting accessory data from the accessory apparatus to the image-capturing apparatus, and a second data communication channel used for transmitting camera data from the image-capturing apparatus to the accessory apparatus;
and
an accessory controller configured to, in response to receiving a transmission request as the notice from the image-capturing apparatus through the notification channel, transmit the accessory data to the image-capturing apparatus through the first data communication channel and configured to receive the camera data transmitted from the image-capturing apparatus in response to receiving the accessory data through the second data communication channel,
wherein:
the accessory controller is configured to:
during transmission of the accessory data to the image-capturing apparatus, in response to not receiving the transmission request from the image-capturing apparatus, stop transmitting the accessory data to the image-capturing apparatus;
and
after an elapsed time from not receiving the transmission request exceeds a predetermined time, in response to receiving the transmission request again, terminate transmitting the accessory data to the image-capturing apparatus.

5 more elements

An image-capturing apparatus to which an accessory apparatus is detachably attachable, the image-capturing apparatus comprising:

a camera communicator configured to provide, with the accessory apparatus, three channels that are a notification channel used for providing a notice from the image-capturing apparatus to the accessory apparatus, a first data communication channel used for transmitting accessory data from the accessory apparatus to the image-capturing apparatus, and a second data communication channel used for transmitting camera data from the image-capturing apparatus to the accessory apparatus;
and
a camera controller configured to provide a transmission request as the notice to the accessory apparatus through the notification channel to thereby cause the accessory apparatus to transmit the accessory data to the image-capturing apparatus through the first data communication channel and configured to, in response to receiving the accessory data, transmit the camera data to the accessory apparatus through the second data communication channel,
wherein
wherein the camera controller is configured to:
during receipt of the accessory data from the accessory apparatus, stop providing the transmission request to thereby cause the accessory apparatus to stop transmitting the accessory data to the image-capturing apparatus;
and
after an elapsed time from not providing the transmission request to the accessory apparatus exceeds a predetermined time, provide the transmission request again to the accessory apparatus to thereby cause the accessory apparatus to terminate transmitting the accessory data to the image-capturing apparatus.

5 more elements

Dependencies are inferred from the claim text.

Accessory apparatus, image-capturing apparatus, control method and storage medium storing control program

Life of this patent

Accessory apparatus, image-capturing apparatus, control method and storage medium storing control program

Life of this patent

Abstract

Claims37