Recording apparatus, control method, and storage medium

Patent metadata

Field	Value
Publication number	US-10439619-B2
Application number	US-201815926437-A
Country	US
Kind code	B2
Filing date	Mar 20, 2018
Priority date	Mar 24, 2017
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A recording apparatus is provided. An adjustment unit executes adjustment processing for adjusting a delay amount of a timing signal. An input control unit executes input control to input continuously recording target data to be recorded to a storage medium, to a buffer memory. A recording control unit executes recording control for recording the recording target data held in the buffer memory to the storage medium, using an input/output unit configured to receive data from the storage medium according to the timing signal. A control unit performs control such that the input control is started before a recording start instruction and the recording control is started in response to the recording start instruction, and such that the adjustment processing is executed during execution of the input control and before the recording control is started in response to the recording start instruction.

First claim

What is claimed is:

1. A recording apparatus comprising:
an output unit configured to output a clock signal to a storage medium;
an input/output unit configured to output a write command and data to be written to the storage medium according to the clock signal in order to write data to the storage medium, and configured to receive data from the storage medium according to a timing signal;
a generation unit configured to generate the timing signal by delaying the clock signal;
an adjustment unit configured to execute adjustment processing for adjusting a delay amount of the timing signal;
a buffer memory configured to hold input data;
an input control unit configured to execute input control to input continuously recording target data to be recorded to the storage medium, to the buffer memory;
a recording control unit configured to execute recording control for recording the recording target data held in the buffer memory to the storage medium, using the input/output unit; and
a control unit configured to control the input control unit, the recording control unit, and the adjustment unit,
wherein the control unit:
performs control such that the input control is started before a recording start instruction and the recording control is started in response to the recording start instruction; and
performs control such that the adjustment processing is executed during execution of the input control and before the recording control is started in response to the recording start instruction.

2. The recording apparatus according to claim 1 , comprising
a discarding unit configured to partly discard the recording target data held in the buffer memory such that a data amount of the recording target data held in the buffer memory does not exceed a first threshold while the input control is being executed before the recording start instruction is received.

3. The recording apparatus according to claim 2 , wherein
the control unit performs control such that the adjustment processing is executed at a timing when the recording target data is partly discarded by the discarding unit.

4. The recording apparatus according to claim 2 , wherein
the discarding unit performs discarding in units of GOPs, units of frames, or units of seconds.

5. The recording apparatus according to claim 1 , wherein
the control unit performs control such that the adjustment processing is executed periodically during execution of the input control and before the recording control is started in response to the recording start instruction.

6. The recording apparatus according to claim 1 , wherein
the control unit performs control such that both the input control and the recording control are performed after the recording start instruction is received.

7. The recording apparatus according to claim 1 , wherein
the control unit performs control such that the recording control is executed after the recording start instruction is received and until a recording stop instruction is received.

8. The recording apparatus according to claim 1 , comprising
a discarding unit configured to discard the recording target data recorded in the storage medium from the buffer memory after the recording start instruction is received,
wherein the control unit performs control such that the adjustment processing is not executed if a data amount of the recording target data held in the buffer memory is greater than or equal to a second threshold after the recording start instruction is received.

9. The recording apparatus according to claim 1 , comprising
a receiving unit configured to receive the recording start instruction from a user.

10. The recording apparatus according to claim 1 , further comprising
an image capturing unit,
wherein the input control unit continuously inputs moving image data captured by the image capturing unit to the buffer memory, as the recording target data.

11. A control method executed by a recording apparatus comprising:
an output unit configured to output a clock signal to a storage medium;
an input/output unit configured to output a write command and data to be written to the storage medium according to the clock signal in order to write data to the storage medium, and configured to receive data from the storage medium according to a timing signal;
a generation unit configured to generate the timing signal by delaying the clock signal; and
a buffer memory configured to hold input data, the control method comprising:
executing adjustment processing for adjusting a delay amount of the timing signal;
executing input control to input continuously recording target data to be recorded to the storage medium, to the buffer memory;
executing recording control for recording the recording target data held in the buffer memory to the storage medium, using the input/output unit;
performing control such that the input control is started before a recording start instruction and the recording control is started in response to the recording start instruction; and
performing control such that the adjustment processing is executed during execution of the input control and before the recording control is started in response to the recording start instruction.

12. A non-transitory computer-readable storage medium which stores a program for causing a computer of a recording apparatus to execute a control method, the recording apparatus comprising:
an output unit configured to output a clock signal to a storage medium;
an input/output unit configured to output a write command and data to be written to the storage medium according to the clock signal in order to write data to the storage medium, and configured to receive data from the storage medium according to a timing signal;
a generation unit configured to generate the timing signal by delaying the clock signal; and
a buffer memory configured to hold input data, the control method comprising:
executing adjustment processing for adjusting a delay amount of the timing signal;
executing input control to input continuously recording target data to be recorded to the storage medium, to the buffer memory;
executing recording control for recording the recording target data held in the buffer memory to the storage medium, using the input/output unit;
performing control such that the input control is started before a recording start instruction and the recording control is started in response to the recording start instruction; and
performing control such that the adjustment processing is executed during execution of the input control and before the recording control is started in response to the recording start instruction.

Assignees

• Canon Kk

Inventors

• Omori Noboru

Classifications

• G11B2020/1062

  Data buffering arrangements, e.g. recording or playback buffers · CPC title

• H03L7/0814

  the phase shifting device being digitally controlled · CPC title

• G11B2020/10675

  aspects of buffer control · CPC title

• G06F2213/3804

  Memory card connected to a computer port directly or by means of a reader/writer · CPC title

• G11B20/10527

  Audio or video recording; Data buffering arrangements (G11B20/12 - G11B20/18 take precedence) · CPC title