Imaging apparatus, flash device, and control method thereof
AssigneeCanon Kabushiki Kaisha
InventorYusuke Shirakawa
Life of this patent
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Abstract
An imaging apparatus for performing wireless communication with an external device. An instruction transmitting unit transmits an operation instruction to the external device. A response signal receiving unit receives a response signal from the external device. A first controlling unit starts a first operation relating to an imaging process in a case that a first time passes from a point of receiving the response signal by the response signal receiving unit. The external device executes a second operation relating to the imaging process in a case that a second time passes from a point of transmitting the response signal from the external device to the imaging apparatus.
Claims19
A communication apparatus configured to wirelessly transmit an operating instruction for operating an external apparatus having a communication unit, the communication apparatus comprising:
- an input unit configured to input a predetermined trigger signal;
- and
- a transmission controlling unit configured to control transmitting a predetermined operating instruction more than once, the predetermined operating instruction being in a plurality of predetermined operating instructions and including timing information regarding an operating timing, in a case where the predetermined trigger signal is input by the input unit,
- wherein each of the predetermined operating instructions which are transmitted more than once includes the timing information different with each other so that the external apparatus is operated in specific timing according to any of the predetermined operating instructions transmitted more than once.
An external apparatus configured to establish wireless communication with a communication apparatus, the external apparatus comprising:
- a reception unit configured to receive predetermined operating instructions including timing information regarding operation timings, wherein the predetermined operating instructions are transmitted from the communication apparatus more than once;
- and
- an operation controlling unit configured to control an operation so that the operation is executed at a timing according to the timing information included in the predetermined operating instruction which is firstly received by the reception unit,
- wherein the predetermined operating instructions include timing information which are different with each other so that the operation is executed at specific timing according to the received predetermined operating instruction.
A method for controlling a communication apparatus configured to wirelessly transmit an operating instruction for operating an external apparatus having a communication unit, the method comprising:
- inputting a predetermined trigger signal;
- and
- controlling to transmit a predetermined operating instruction more than once, the predetermined operating instruction being in a plurality of predetermined operating instructions and including timing information regarding an operating timing, in a case where the predetermined trigger signal is input by the input unit,
- wherein each of the predetermined operating instructions which are transmitted more than once includes the timing information different with each other so that the external apparatus is operated in specific timing according to any of the predetermined operating instructions transmitted more than once.
A method for controlling an external apparatus configured to establish wireless communication with a communication apparatus, the method comprising:
- receiving predetermined operating instructions including timing information regarding operation timings, wherein the predetermined operating instructions are transmitted from the communication apparatus more than once;
- and
- controlling an operation so that the operation is executed at a timing according to the timing information included in the predetermined operating instruction which is firstly received at the receiving step,
- wherein the predetermined operating instructions include timing information which are different with each other so that the operation is executed at specific timing according to the received predetermined operating instruction.
Dependencies are inferred from the claim text.