JP2007259375A - Recording/reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such a problem that a recorded moving image cannot be quickly confirmed since recording is stopped to move into a power-off state when an attitude of a recording/reproducing device is determined not appropriate for recording, and supply of the power needs to be waited to confirm the recorded moving image. <P>SOLUTION: The recording/reproducing device comprises: an attitude determination means 102 for determining the current attitude of the recording/reproducing device based on an attitude detection result detected by an attitude detection means 101; and a mode control means 103 for switching a mode based on results of the attitude determination means 102. When the current attitude of the recording/reproducing device is determined as the attitude capable of recording, the mode is switched into a recording mode by the mode control means 103. When the current attitude is determines as the attitude unsuited for recording but capable of reproducing, the mode is switched into a reproducing mode by the mode control means 103. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a recording / reproducing apparatus having a plurality of modes such as a recording mode in which only a recording-related operation can be performed and a reproduction mode in which only a reproduction-related operation can be performed.

  In recent years, an apparatus for recording a video signal as a file on a recording medium such as an optical disk or a semiconductor memory has become common. In such a recording / reproducing apparatus, it takes time to start up after the power is turned on, and recording may not be performed immediately after the power is turned off. For this reason, in order not to miss a recording opportunity, it is assumed that the user will continue to be in a recording operation state with the power turned on. Will continue to do.

In order to solve such a problem, Japanese Patent Application Laid-Open No. 2004-228867 discloses a posture detection unit that can detect whether the posture of the recording / playback apparatus is a recordable posture or a posture unsuitable for recording (for example, a posture taking the ground directly below). Has been proposed. According to such a configuration, after the recording is started, the posture of the recording / reproducing apparatus is detected to determine whether or not the recording posture is possible, and when it is determined that the posture is not suitable for recording, the recording is performed. By ending, it is possible to prevent unintended recording by the user and to prevent wasteful power consumption.
JP-A-5-328177

  As described above, when the conventional recording / reproducing apparatus determines that the posture is not suitable for recording, the recording / reproducing apparatus shifts to a recording stop or power-off state. In such a state, in order to check the recorded moving image, it is necessary to wait for power to be supplied. Further, the conventional recording / reproducing apparatus has a plurality of modes such as a recording mode in which a recording-related operation can be performed and a reproduction mode in which a reproduction-related operation can be performed. Is required. Therefore, even when the user ends the recording by himself / herself, an operation of changing from the recording mode to the reproduction mode is necessary to confirm the recorded moving image. For these reasons, there is a problem that the recorded moving image cannot be confirmed quickly.

  Therefore, the recording / reproducing apparatus of the present invention detects the attitude of the apparatus and determines whether the apparatus is in a recordable position, a reproducible attitude, or an attitude that is not suitable for recording or reproduction, and is suitable for recording. However, if it is determined that the posture is reproducible, the mode is automatically switched to the playback mode. If it is determined that the posture is not suitable for both recording and playback, the recording is terminated to allow the user to record. It is an object of the present invention to provide a recording / reproducing apparatus that can confirm the recorded data and improve user convenience.

  In order to achieve the above object, a recording / reproducing apparatus of the present invention is a recording / reproducing apparatus having a mode corresponding to a user's operation, recording means for recording an input signal on a recording medium, and data of the recording medium. Reproducing means for reproducing, attitude detecting means for detecting the attitude of the recording / reproducing apparatus, and mode control means for switching the mode based on the detection result of the attitude detecting means.

  According to the recording / reproducing apparatus of the present invention, the posture of the recording / reproducing apparatus is detected and is not suitable for recording, but when it is determined that the posture is reproducible, the user can quickly switch to the reproduction mode. Can immediately check the recorded data, and the convenience of the user can be improved.

  The recording / reproducing apparatus of the present invention is a recording / reproducing apparatus having a mode corresponding to a user operation, a recording unit for recording an input signal on a recording medium, a reproducing unit for reproducing data of the recording medium, and the recording It is suitable for recording by detecting the attitude of the recording / reproducing apparatus by a configuration comprising attitude detecting means for detecting the attitude of the reproducing apparatus and mode control means for switching the mode based on the detection result of the attitude detecting means. However, if it is determined that the posture is reproducible, it is possible to quickly switch to the reproduction mode, so that the data recorded by the user can be immediately confirmed, and the convenience for the user can be improved.

  In the recording / reproducing apparatus according to the above configuration, the mode control unit may control the mode based on a detection result by the posture detection unit and a history of mode switching. This allows the recording / reproducing apparatus to be kept in the mode intended by the user without switching the mode even when the mode switching posture is not intended during the operation. Convenience can be improved.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a recording / reproducing apparatus according to Embodiment 1 of the present invention. In FIG. 1, 101 is a posture detection unit for detecting the posture of the recording / reproducing apparatus, 102 is a posture determination unit for determining the current posture of the recording / reproducing apparatus from the posture detection result detected by the posture detection unit 101, and 103 is a posture. Mode control means for switching the mode of the recording / reproducing apparatus from the result of the judgment means 102, 104 is a recording medium for recording data, 105 is an input signal receiving unit for receiving input video signals and audio signals, and 106 is an input signal Recording means for recording the signal received by the receiving unit 105 on the recording medium 104, 107 reproducing means for reproducing the data recorded on the recording medium 104, and 108 displaying the input from the reproducing means 107 Display device.

  The operation of the recording / reproducing apparatus of the present invention configured as described above will be described with reference to FIG. First, when the power is turned on (S201), the attitude of the recording / reproducing apparatus is detected by the attitude detection means 101 (S202). From the result of the attitude detection means 101, the attitude determination means 102 determines whether or not the current attitude of the recording / playback apparatus is a recordable attitude (S203). For example, when the recording / reproducing device is oriented horizontally and the top / bottom is in a normal posture, it is determined as a recordable posture, and when the recording / reproducing device is oriented vertically to the ground, it is not suitable for recording. It is determined that the posture is reproducible, and when the recording / reproducing apparatus is in an upside-down posture directed horizontally, it is determined that the posture is not suitable for both recording and reproduction.

  If it is determined that the attitude of the recording / reproducing apparatus is a recordable attitude (S204), the recording mode is selected (S204), and the mode control means 103 switches the mode of the recording / reproducing apparatus to the recording mode selected in S204 ( S205). At this time, if playback is in progress, playback is automatically stopped by the playback means 107. If the recording / reproducing apparatus determines that the posture is not suitable for recording, the posture determining unit 102 determines whether the current posture of the recording / reproducing device is a reproducible posture from the result of the posture detecting unit 101. (S205). When it is determined that the recording / reproducing apparatus is in a reproducible posture, the reproduction mode is selected (S207), and the mode control means 103 switches the recording / reproducing apparatus mode to the reproduction mode selected in S207 (S205). At this time, if the recording is in progress, the recording unit 106 automatically stops the recording. If the posture determination unit 102 determines that the current posture of the recording / playback apparatus is not suitable for recording or playback, the power is turned off (S208). In S205, when the mode of the recording / reproducing apparatus is switched by the mode control unit 103, the process returns from S205 to S202, the attitude of the recording / reproducing apparatus is detected again by the attitude detecting unit 101, and the mode is switched according to the attitude. When the power is turned on in this manner, the attitude of the recording / reproducing apparatus can always be detected by the attitude detecting means 101, and the recording mode and the reproducing mode can be automatically switched according to the detection result. If the posture is not suitable for either of these, the power can be turned off.

  In this embodiment, the determination as to whether or not the posture can be recorded in S203 is performed prior to the determination as to whether or not the posture is reproducible in S206. However, it may change dynamically according to the current mode. For example, when emphasizing not to miss a recording opportunity, it is sufficient to preferentially determine whether or not the recording posture is possible as in this embodiment, but the current mode is continued as much as possible. If the focus is on what you want to do, if the current mode is the recording mode, determine whether or not the posture is recordable, and if the current mode is the playback mode, play the posture It may be changed dynamically, such as preferentially determining whether or not.

  Also, in the present embodiment, it is assumed that the attitude of the recording / reproducing apparatus is determined and the mode of the apparatus at that time is either the recording mode or the reproducing mode, and otherwise the power is turned off. However, by defining the attitude determination method of the recording / playback apparatus and defining the corresponding mode, the attitude determination means 102 determines the attitude and changes to the corresponding mode, thereby limiting the number of modes. Not. For example, it may be only one of the recording modes in which only a recordable posture determination method is defined, and three posture determination methods of a recordable posture, a reproducible posture, and an editable posture are defined, It is also possible to switch to three modes (recording mode, playback mode, editing mode) corresponding to it. In this case, the posture determination as in S203 and S206 may be repeated for the number of modes.

  Further, in the present embodiment, the posture determination unit 102 determines the posture of the recording / reproducing apparatus from the result detected by the posture detection unit 101 and switches the mode, but from the result detected by the posture detection unit 101. The determination may also be made using the determined previous posture or the previous previous posture finally determined from the previous posture by the posture determination means 102. For example, when it is determined only by the posture of the current recording / reproducing apparatus, even if it is the posture of the reproduction mode, if the previous five final posture determination results were the recording mode, The recording mode may be determined.

  Thereby, even when the user intentionally shoots in the ground direction in the process of recording, the recording mode can be continued and the recording / reproducing apparatus can be kept in the mode intended by the user. Convenience can be improved.

  Here, examples of the parameters detected by the posture detection unit 101 include an angle serving as an index of the level and verticality of the recording / reproducing apparatus, an angular velocity and an acceleration serving as an index of a change in motion from the previous posture, and the like. For example, during recording or playback, there is little change in the normal posture of the recording / playback device, and there is a sudden change in posture mainly when switching modes. It is also possible to make a mode switching determination while paying attention to angular velocity and acceleration.

  In the present embodiment, the mode of the recording / reproducing apparatus is switched by the mode control means 103. However, if the current mode and the mode selected in S204 or S207 are the same, the current state is not switched without switching the mode. May be held.

  In the present embodiment, in the flow from S204 to S205, the mode control means 103 switches the mode of the recording / reproducing apparatus to the recording mode, but at the same time the mode is switched to the recording mode, the input signal is received. Recording of the input signal from the unit 105 on the recording medium 104 by the recording unit 106 may be started. As a result, it is possible to perform recording quickly without the user performing an extra operation such as pressing a button for starting recording.

  In the present embodiment, in the flow from S207 to S205, the mode control unit 103 switches the mode of the recording / playback apparatus to the playback mode. The data may be reproduced by the reproducing means 107 and displayed on the display device 108. For example, when the user switches to playback mode and plays back data such as a movie or a still image that the user has recorded immediately before, the user does not need to perform an extra operation such as pressing a button for starting playback. It becomes possible to quickly confirm the data recorded immediately before.

(Embodiment 2)
In the first embodiment, the number of modes is not limited as long as the posture determination method of the recording / playback apparatus corresponding to each mode is defined and the posture determination unit 102 can determine the posture of each mode. However, when the number of modes increases, it is difficult to define the attitude determination method of the recording / reproducing apparatus corresponding to each mode. An operation for switching a plurality of modes by one posture determination method with the same configuration as in FIG. 1 will be described with reference to FIG. First, when the power is turned on (S301), the attitude detection unit 101 detects the attitude of the recording / reproducing apparatus (S302). From the result of the attitude detection means 101, the attitude determination means 102 determines whether or not the current attitude of the recording / playback apparatus is an attitude that requires mode switching (S303). If it is determined that the attitude of the recording / reproducing apparatus is not an attitude that requires mode switching, the process returns from S303 to S302. If it is determined that the attitude of the recording / reproducing apparatus is an attitude for requesting mode switching, the mode of the recording / reproducing apparatus is switched by the mode control means 103 (S304). When the mode of the recording / reproducing apparatus is switched by the mode control means 103, the process returns from S304 to S302, the attitude of the recording / reproducing apparatus is detected again by the attitude detecting means 101, and the mode is switched according to the attitude. When the power is turned on in this way, the posture of the recording / reproducing apparatus can always be detected by the posture detection means 101, and a plurality of modes can be automatically switched according to the detection result.

  In the present embodiment, the number of modes to be switched in S304 is not limited, and the order of switching modes is set in the mode control means 103, and the modes may be switched based on the order.

  Further, in the present embodiment, what is switched in S304 is limited to “mode”, but by switching the mode control means 103, conditions other than “mode” may be switched. For example, “recording image quality” can be switched by replacing the mode control means 103 with recording image quality control means, and “data being reproduced” can be switched by replacing with the reproduction data control means. Is possible.

(Embodiment 3)
The first embodiment has the advantage that the mode is determined according to the attitude of the recording / reproducing apparatus, and the second embodiment has the advantage that other conditions than the mode can be switched according to the attitude. Therefore, in order to use these two advantages, a combination of the two forms is conceivable. For example, the recording / playback apparatus has two modes, a recording mode and a playback mode. The attitude determination method of the recording / playback apparatus corresponding to each mode and the switching attitude, which are different conditions from these attitude determination methods, are provided. Define. In this case, the switching between the recording mode and the reproduction mode is performed in the first embodiment, and the switching of the recording image quality in the recording mode and the switching of the data being reproduced in the reproduction mode are performed using the condition switching attitude according to the second embodiment. To do. As a result, it is possible to perform the three operations of mode switching, recording image quality switching, and reproduction data switching without button operation.

  According to the recording / reproducing apparatus of the present invention, since the mode such as the recording mode and the reproducing mode can be switched according to the attitude of the recording / reproducing apparatus, it is useful in a wide range such as a digital still camera and a digital video camera having a plurality of modes. It is.

The block diagram which shows the structure of the recording / reproducing apparatus in one embodiment of this invention The flowchart which shows operation | movement of the recording / reproducing apparatus in one embodiment of this invention. The flowchart which shows the operation | movement of the recording / reproducing apparatus in other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Posture detection means 102 Posture determination means 103 Mode control means 104 Recording medium 105 Input signal receiving part 106 Recording means 107 Reproduction means 108 Display apparatus

Claims (2)

In a recording / reproducing apparatus having a mode corresponding to a user operation,
Recording means for recording the input signal on a recording medium;
Reproducing means for reproducing data of the recording medium;
Attitude detecting means for detecting the attitude of the recording / reproducing apparatus;
A recording / reproducing apparatus comprising: mode control means for switching the mode based on a detection result of the posture detection means. The recording / reproducing apparatus according to claim 1, wherein the mode control unit controls the mode based on a detection result by the posture detection unit and a history of switching of the mode.