Video recording apparatus, control method therefor, and storage medium storing control program therefor

Patent metadata

Field	Value
Publication number	US-2016353024-A1
Application number	US-201615165666-A
Country	US
Kind code	A1
Filing date	May 26, 2016
Priority date	May 27, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A video recording apparatus that is capable of reducing generation of error in a time code due to an auto-power-off function. A setting unit sets a count method by which a time code given to a video image is counted by selecting from among a plurality of count methods including a free run mode in which the time code is counted regardless of whether a video image is recording. A control unit controls so as to perform auto power off to turn off power when a predetermined condition, which includes a condition where there is no user's operation within a predetermined period, is satisfied in a mode other than the free run mode. The control unit controls so as not to turn off the power even when the predetermined condition is satisfied in the free run mode.

First claim

What is claimed is:

1 . A video recording apparatus comprising:
a setting unit configured to set a count method by which a time code given to a video image is counted by selecting from among a plurality of count methods including a free run mode in which the time code is counted regardless of whether a video image is recording; and a control unit configured to control so as to perform auto power off to turn off power when a mode other than the free run mode is set up with said setting unit and when a predetermined condition, which includes a condition where there is no user's operation within a predetermined period, is satisfied, and to control so as not to turn off the power even when the predetermined condition is satisfied when the free run mode is set up with said setting unit.

2 . The video recording apparatus according to claim 1 , wherein said control unit controls so as to turn off the power even in a mode for taking a video image when the predetermined condition is satisfied and when a mode other than the free run mode is set up with said setting unit.

3 . The video recording apparatus according to claim 1 , further comprising a first notification unit configured to give warning notification when the free run mode is set up with said setting unit and when the predetermined condition is satisfied.

4 . The video recording apparatus according to claim 3 , wherein the warning notification shows that the free run mode is set.

5 . The video recording apparatus according to claim 3 , wherein the warning notification shows that the auto power off is not performed.

6 . The video recording apparatus according to claim 1 , further comprising a second notification unit configured to notify a user that the auto power off is not performed in the free run mode when the count method is set up with said setting unit.

7 . The video recording apparatus according to claim 1 , further comprising:
a high-precision-signal generation circuit that generates highly accurate clock that is used to count for clocking when the power is ON; and a low-frequency-signal generation circuit that generates low frequency clock for counting by performing an oscillation operation at frequency that is lower than frequency of said high-precision-signal generation circuit when the power is OFF.

8 . The video recording apparatus according to claim 7 , further comprising a clock unit configured to perform a clock process according to the low frequency clock when the power is OFF.

9 . The video recording apparatus according to claim 1 , further comprising an auto-power-off setting unit configured to set up about whether the auto power off is performed,
wherein said control unit controls so as not to perform the auto power off even when the predetermined condition is satisfied and when a mode other than the free run mode is set up with said setting unit, when it is set that the auto power off is not performed with said auto-power-off setting unit.

10 . The video recording apparatus according to claim 9 , wherein said auto-power-off setting unit selects one setting from among a first setting that performs the auto power off irrespective of whether the free run mode is set, a second setting that does not perform the auto power off in the free run mode, and a third settings that does not perform the auto power off irrespective of whether the free run mode is set, and
wherein said control unit controls so as to perform the auto power off even when the free run mode is set up with said setting unit, when the predetermined condition is satisfied and when the first setting is selected with said auto-power-off setting unit.

11 . The video recording apparatus according to claim 9 , wherein said control unit controls so as not to perform the auto power off even when the predetermined condition is satisfied and when a mode other than the free run mode is set up with said setting unit, when the third setting is selected with said auto-power-off setting unit.

12 . The video recording apparatus according to claim 1 , wherein the plurality of count methods that are set up with said setting unit include a rec run mode in which the time code is counted only when a video image is recording.

13 . The video recording apparatus according to claim 1 , further comprising a warning unit configured to warn a user when battery residue is less than a predetermined threshold,
wherein said warning unit warns at a large sound volume when the free run mode is set up with said setting unit and warns at a small sound volume when a mode other than the free run mode is set up with said setting unit.

14 . The video recording apparatus according to claim 1 , further comprising a warning unit configured to warn a user when battery residue is less than a predetermined threshold,
wherein said warning unit uses a first threshold as the predetermined threshold when a mode other than the free run mode is set up with said setting unit, and uses a second threshold that is larger than the first threshold as the predetermined threshold when the free run mode is set up with said setting unit.

15 . A control method for a video recording apparatus, the control method comprising:
a setting step of setting a count method by which a time code given to a video image is counted by selecting from among a plurality of count methods including a free run mode in which the time code is counted regardless of whether a video image is recording; and a control step of controlling so as to perform auto power off to turn off power when a mode other than the free run mode is set up in said setting step and when a predetermined condition, which includes a condition where there is no user's operation within a predetermined period, is satisfied, and of controlling so as not to turn off the power even when the predetermined condition is satisfied when the free run mode is set up in said setting step.

16 . A non-transitory computer-readable storage medium storing a control program causing a computer to execute a control method for a video recording apparatus, the control method comprising:
a setting step of setting a count method by which a time code given to a video image is counted by selecting from among a plurality of count methods including a free run mode in which the time code is counted regardless of whether a video image is recording; and a control step of controlling so as to perform auto power off to turn off power when a mode other than the free run mode is set up in said setting step and when a predetermined condition, which includes a condition where there is no user's operation within a predetermined period, is satisfied, and of controlling so as not to turn off the power even when the predetermined condition is satisfied when the free run mode is set up in said setting step.

Assignees

• Canon Kk

Inventors

• Mori Kurumi

Classifications

• H04N23/634

  Warning indications · CPC title

• H04N23/631

  Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters · CPC title

• H04N23/651 Primary

  for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera · CPC title

• H04N5/23241 Primary

  Electricity · mapped topic

• H04N5/772

  the recording apparatus and the television camera being placed in the same enclosure · CPC title