JP5686574B2 - Recording device - Google Patents

Description

  The present invention relates to a recording apparatus, and more particularly to an apparatus for recording a moving image.

  2. Description of the Related Art Conventionally, a video camera is known as an apparatus for recording a moving image or sound. In the video camera, since shooting is started in response to an instruction to start shooting by the user, there is a problem in that a missed scene cannot be recorded before the shooting is started. In view of this, a configuration has been proposed in which data is repeatedly recorded in the buffer memory, and writing to the buffer memory is stopped when a user command is given, thereby preventing missed shooting (for example, Patent Document 1). reference).

  In addition, the video camera has a built-in memory, and moving images for a predetermined period immediately before the shooting start instruction are repeatedly stored in the memory. When there is a shooting instruction, the video is stored before the predetermined period stored in the memory. It is also considered to record from a moving image to a recording medium.

  In recent years, video cameras capable of changing the frame rate of moving images to be recorded have appeared. For example, a slow motion effect can be obtained by reproducing and displaying a moving image shot and recorded at a high frame rate at a low frame rate.

Japanese Patent Laid-Open No. 7-99628

  As described above, in accordance with an instruction to start shooting, it is possible to prevent the shooting from being missed by the configuration in which the moving image stored in the memory before the predetermined period is recorded on the recording medium. However, if the frame rate of the moving image to be shot changes, the time of the moving image that can be stored in the memory also changes. Also, when the frame rate becomes very high, it may be possible to store in the memory only for a very short time.

  When the frame rate is changed in this way, the user cannot confirm how long the moving image can be stored in the memory before the shooting instruction. For this reason, it was inconvenient.

  The present invention aims to solve such problems. An object of the present invention is to improve usability when changing the frame rate of a moving image.

  Another object of the present invention is to make it possible to easily set the recording time and frame rate of a moving image stored immediately before the start of recording.

In order to achieve the object of the present invention, a recording apparatus according to the present invention includes an imaging unit that outputs moving image data at a set frame rate, a memory that stores moving image data obtained by the imaging unit, and an instruction to start recording And recording means for recording the moving image data obtained by the imaging means on the recording medium, and first recording for starting recording by the recording means from the frame corresponding to the recording start instruction of the moving image data output from the imaging means The mode and the moving image data obtained by the imaging means are repeatedly stored in the memory until a recording start instruction is issued, and in accordance with the recording start instruction, a predetermined recording start instruction is stored in the moving image data stored in the memory. A mode in which one of the second recording modes in which recording by the recording means is started from a frame corresponding to the time before the recording time is set as the recording mode. And setting means, a frame rate, comprising: a frame rate setting means for setting to one of a plurality of frame rates, and control means for controlling the setting processing of the frame rate by the frame rate setting means, the control means of the second In the recording mode, control is performed so that a predetermined frame rate at which the recording time of the moving image data stored in the memory is shorter than the predetermined time is not set based on the predetermined time, and the predetermined frame rate is set in the first mode. that control as one of the plurality of frame rate is set comprising.

  Usability of the recording apparatus when changing the frame rate of the moving image can be improved.

It is a figure which shows the structure of the video camera in embodiment of this invention. It is a flowchart which shows the recording process in 1st Example of this invention. It is a flowchart which shows the frame rate setting process in 1st Example of this invention. It is a figure which shows the setting screen of the frame rate in 1st Example of this invention. It is a flowchart which shows the pre-recording mode setting process in 1st Example of this invention. It is a flowchart which shows the setting process of the frame rate in 2nd Example of this invention. It is a figure which shows the setting screen of the frame rate in 2nd Example of this invention. It is a figure which shows the correspondence information of pre-recording time and a frame rate in the 3rd Example of this invention. It is a flowchart which shows the pre recording mode setting process in the 3rd Example of this invention. It is a figure which shows the setting screen of the pre recording time in 3rd Example of this invention. It is a flowchart which shows the setting process of the frame rate in the 3rd Example of this invention. It is a figure which shows the setting screen of the frame rate in the 3rd Example of this invention. It is a flowchart which shows the setting process of the frame rate in 4th Example of this invention. It is a figure which shows the setting screen of the frame rate in 4th Example of this invention. It is a flowchart which shows the setting process of the frame rate in the 5th Example of this invention. It is a figure which shows the setting screen of the frame rate in the 5th Example of this invention. It is a flowchart which shows the pre recording mode setting process in the 5th Example of this invention. It is a figure which shows the setting screen of the pre-recording time in the 5th Example of this invention. It is a figure which shows the other Example of the setting screen of a frame rate, and the setting screen of a pre recording time.

(First embodiment)
FIG. 1 is a block diagram showing a configuration of a video camera 100 as a recording apparatus of the present invention. The video camera 100 records a moving image signal according to a predetermined recording format. The moving image signal and other information recorded on the recording medium are managed as files in accordance with a FAT (File Allocation Table) file system. In addition, the video camera 100 can change the frame rate (the number of frames per unit time) of a moving image to be shot to any one of a plurality of predetermined frame rates. In addition, the video camera 100 repeatedly stores, in a memory, a moving image for a predetermined recording time immediately before an instruction to start shooting by the user, and if there is an instruction to start recording, the video camera 100 is shot before the predetermined recording time from the memory. It has a pre-recording mode that reads out and records recorded videos.

  In FIG. 1, an imaging unit 101 captures a subject, generates moving image data indicating the subject, and outputs it. The imaging unit 101 includes an optical system such as a zoom lens and a focus lens, an image sensor such as a CCD, an iris, an AD converter that converts captured moving image data into digital data, and a processing circuit that performs necessary processing on the captured moving image data. Etc. The audio input unit 102 includes a microphone, an amplifier, an AD converter, and the like, acquires the audio of the subject, and outputs audio data. The memory 103 stores moving image data output from the imaging unit 101, audio data from the audio input unit 102, display image signals, compressed moving image data, and other information. In addition, the memory 103 has a capacity (predetermined storage area) capable of storing compressed moving image data for a predetermined period immediately before an instruction to start shooting from a user in a pre-recording mode to be described later.

  At the time of recording, the signal processing unit 104 performs encoding processing according to a known encoding method such as MPEG on the captured moving image data, compresses the information amount, and stores it in the memory 103. Further, at the time of reproduction, the signal processing unit 104 decodes the reproduced moving image data and audio data to expand the information amount.

  The display control unit 105 displays moving images and various types of information on the display unit 106 in accordance with instructions from the control unit 107. The display unit 106 includes a known display device such as a liquid crystal panel.

  The control unit 107 includes a microcomputer and other necessary memory, and controls the operation of each unit of the video camera 100 according to an instruction from the operation unit 108 according to a program stored in a nonvolatile memory (not shown). The operation unit 108 includes various switches such as a power switch that can be operated by the user, a trigger switch that instructs to start and stop moving image shooting, a playback switch, and a menu switch. The control unit 107 receives a user instruction from the operation unit 108. Further, the user operates the menu switch to display a menu screen on the display unit 106, changes the operation mode of the video camera 100 using the menu screen, and changes the setting.

  The recording / reproducing unit 109 records moving image data, audio data, and various types of information on the recording medium 110 in accordance with instructions from the control unit 107, and reproduces from the recording medium 110. The recording medium 110 is a randomly accessible recording medium such as a memory card or a hard disk (HDD). In the present embodiment, the recording medium 110 is a replaceable memory card with a built-in flash memory. Further, the recording medium 110 is configured so that the user can easily mount and discharge the video camera 100 by a mounting and discharging mechanism (not shown). The output unit 111 outputs captured moving image data or reproduced moving image data to an external device of the video camera 100. The internal bus 112 is used to transfer various data and commands between the units of the video camera 100.

  Next, recording processing by the video camera 100 will be described. FIG. 2 is a flowchart showing recording processing in the video camera 100. 2 is executed by the control unit 107 controlling each unit by executing the stored program.

  When the power of the video camera 100 is turned on by the operation unit 107, the control unit 107 sets the operation mode of the video camera to the normal recording mode (first recording mode). Then, each unit is controlled, and the moving image data obtained by the imaging unit 101 is stored in the memory 103. The control unit 107 controls the image capturing unit 101 to capture a moving image with a frame rate set by the user and output moving image data as described later. Then, a moving image of the subject corresponding to the moving image data stored in the memory 103 is displayed on the display unit 106, and a recording standby state is set (S201).

  In this state, the control unit 107 determines whether or not the operation unit 108 has requested switching to the pre-recording mode (second recording mode). When there is no request for switching to the pre-recording mode, the control unit 107 determines whether there is an instruction to start recording (S205). When there is an instruction to start recording, the control unit 107 controls each unit and starts recording a moving image. In the normal recording mode, the moving image recording is started from the frame corresponding to the recording start instruction. The imaging unit 101 outputs moving image data having a set frame rate in accordance with an instruction from the control unit 107, and sequentially stores it in the memory 103 via the bus 110. The signal processing unit 104 compresses the moving image data stored in the memory 103 and stores the compressed data in the memory 103 again (S206). The control unit 107 also controls the signal processing unit 104 to encode the audio data from the audio input unit 102 when the currently set frame rate is 30 frames / second (fps) or 24 fps. . The control unit 107 instructs the recording / playback unit 109 to read the moving image data from the memory 103 and record it on the recording medium 110 (S207).

  When recording is instructed by the operation unit 107 after the recording is started (S208), the control unit 107 instructs the recording / playback unit 109 to stop recording the moving image (S209). In the present embodiment, a series of moving images recorded between a recording start instruction and a recording stop instruction are managed as one file.

  In the present embodiment, the data rate (data amount per unit time) of compressed moving image data and audio data is lower than the data rate that can be recorded on the recording medium 110. For this reason, after a recording start instruction, each time a predetermined amount of compressed moving image signal is stored in the memory 103, the moving image data is read from the memory 103 and written to the recording medium 110. Then, when the amount of moving image data stored in the memory 103 becomes lower than the threshold, recording on the recording medium is temporarily stopped. In this way, moving image data is intermittently recorded on the recording medium 110.

  Then, when there is an instruction for another mode such as a playback mode or power off from the operation unit 108, the control unit 107 ends the process (S210).

  When there is a request for switching to the pre-recording mode in S202, the control unit 107 executes pre-recording mode setting processing (S203). The pre-recording mode setting process will be described later. Then, the control unit 107 determines whether or not the pre-recording mode is set (S204). If the pre-recording mode is not set, the control unit 107 proceeds to S205 and executes the above-described normal recording mode processing. When the pre-recording mode is set, the control unit 107 controls the signal processing unit 104 so as to compress the moving image data shot by the imaging unit 101 and sequentially store it in the memory 103 (S211). In the present embodiment, the compressed moving image data for n seconds, for example, 3 seconds, is repeatedly stored in the memory 103. When there is an instruction to start recording, recording of the moving image is started from a frame 3 seconds before the instruction to start recording in the moving image signal stored in the memory 103. As described above, in the pre-recording mode, the recording of the moving image signal is started from the screen input three seconds before the time point of the recording start instruction from the user. Depending on the capacity of the memory 103, the recording time of the moving image data stored in the pre-recording mode can be extended.

  In the pre-recording mode, each frame of moving image data from the imaging unit 101 is written into the memory 103. Thereafter, compression processing is performed by the signal processing unit 104, and repeatedly compressed moving image data is stored at a predetermined address in the memory 103. In the present embodiment, in the pre-recording mode, the storage capacity prepared in the memory 103 for storing the compressed moving image data in the recording standby state is a capacity capable of storing a 120 fps moving image for a predetermined time. Then, in response to the setting instruction for the pre-recording mode, writing of the compressed moving image data is started from the start address of the storage area for repeatedly storing the compressed moving image. When the moving image is written to the end of the storage area for the compressed moving image, it is overwritten by returning to the start address of the storage area for the compressed moving image. Therefore, after a predetermined time has elapsed after setting to the pre-recording mode, moving images up to a predetermined time before are always stored in the memory 103 in the recording standby state.

  In the present embodiment, since moving image data is compressed by the MPEG method, the amount of data after encoding differs for each frame. Therefore, the signal processing unit 104 informs the control unit 107 of information on the storage address of each frame every time encoding of each frame is completed and writing to the memory 103 is completed. Thereby, the control unit 107 can detect the storage address of the frame n seconds before the moving image data currently stored in the memory 103.

  As described above, when the pre-recording mode is set, the moving image data from the imaging unit 101 is sequentially stored in the memory 103. Then, the moving image data compressed by the signal processing unit 104 is stored in the memory 103.

Next, the control unit 107 determines whether or not a change to the normal recording mode is instructed by the operation unit 108 (S212). When a change from the pre-recording mode to the normal recording mode is instructed, the control unit 107 stops storing the moving image data in the memory 103, switches to the normal recording mode, and returns to the recording standby state. When there is no instruction to change to the normal recording mode, the control unit 107 determines whether or not an instruction to start recording is given by the operation unit 108 (S213). If there is no instruction to start recording, the process returns to S211. When there is a recording start instruction, the control unit 107 starts recording on the recording medium 110 from a frame n seconds before the frame corresponding to the recording start instruction in the compressed moving image data stored in the memory 103. Then, the recording / reproducing unit 109 is controlled (S214). Even after the instruction to start recording, the imaging unit 101 continues to shoot moving image data at the set frame rate, and continuously outputs the moving image data. In addition, after the recording start instruction, the signal processing unit 104 continues to compress the moving image and audio data, and continuously writes the compressed moving image and audio data to the memory 103. At this time, the recording / playback unit 104 stores the compressed moving image and audio data in the storage area for repeatedly storing the compressed moving image in the memory 103. The recording / playback unit 109 reads the compressed moving image data and audio data from the memory 103 and records them on the recording medium 110. Then, in response to the amount of moving image data and audio data stored in the memory 103 being less than the threshold value, reading of data from the memory 103 and recording on the recording medium 110 are temporarily stopped. In this manner, moving images and audio data are intermittently recorded on the recording medium 110.
Then, the control unit 107 determines whether or not there is an instruction to stop recording (S215), and when there is an instruction to stop recording, the recording of the compressed moving image data to the recording medium 110 is stopped (S216). At this time, the control unit 107 detects a frame that has been shot when a recording stop instruction is given as a recording stop frame. Then, the control unit 107 instructs the signal processing unit 104 to encode the moving image data up to the recording stop frame and store it in the memory 103. Then, the control unit 107 instructs the recording / reproducing unit 109 to stop recording after recording moving image data up to the recording stop frame. When the recording on the recording medium 110 is stopped, the control unit 107 again compresses the moving image data from the imaging unit 101 and controls each unit so as to repeatedly write to the memory 103 as described above. Then, the process shifts to a recording standby state (S217), and when there is an instruction for another mode such as a playback mode or power-off from the operation unit 108, the process ends (S218).
If there is an instruction to start recording before n seconds have elapsed after setting the pre-recording mode, recording is started from the frame stored in the memory 103 first after setting the pre-recording mode. .

  Next, the frame rate setting process will be described. The user can set the frame rate of a moving image that is captured and recorded by the imaging unit 101 in the recording standby state in both the normal recording mode and the pre-recording mode. In the present embodiment, in the normal recording mode, any of 12 fps, 15 fps, 24 fps, 30 fps, 60 fps, 120 fps, 240 fps, 480 fps, and 960 fps can be set. On the other hand, when the compression rate of moving image data is not changed, the amount of encoded moving image data per unit time increases as the frame rate increases. In addition, when the capacity of the memory 103 is limited and the frame rate is increased, in the pre-recording mode, the time of moving images that can be stored in the memory before starting recording becomes extremely short. In the present embodiment, in the pre-recording mode, the storage capacity prepared in the memory 103 for storing the compressed moving image data in the recording standby state is a capacity capable of storing a 120 fps moving image for a predetermined time. Therefore, in the pre-recording mode, settings of 240 fps, 480 fps, and 960 fps are prohibited so that the recording time of moving images that can be stored in the memory 103 before the start of recording does not become shorter than a predetermined time, here 3 seconds. If the user sets the frame rate to be lower than 120 fps, a compressed moving image having a time longer than 3 seconds can be stored in the memory 103 in the recording standby state. However, in the first embodiment, the recording is started from the frame three seconds before the recording start instruction in the pre-recording mode, regardless of the set frame rate of 120 fps or less. For example, when the frame rate is set to 60 fps, compressed video and audio data for 6 seconds can be stored in the memory 103. Even in this case, recording is performed from a frame 3 seconds before the instruction to start recording. To start.

  FIG. 3 is a flowchart showing a frame rate setting process. The processing of FIG. 3 is executed by the control unit 107 controlling each unit.

  When the user operates the operation unit 108 to instruct the setting of the frame rate, the control unit 107 determines whether the current recording mode is the normal recording mode or the pre-recording mode (S301). In the normal recording mode, the control unit 107 permits setting of all frame rates as described above (S302). Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S303). The control unit 107 selects one of the frame rates displayed on the setting screen and determines whether or not the frame rate is set (S304). When the frame rate is set, the set frame rate is set. Is stored in the memory 103 and the process ends (S305).

  On the other hand, when the current recording mode is the pre-recording mode, the control unit 107 permits setting of some predetermined frame rates among the frame rates that can be set in the normal recording mode, and sets other frame rates. It is prohibited (S306). Specifically, any setting of 12 fps, 15 fps, 24 fps, 30 fps, 60 fps, and 120 fps is permitted. Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S303). At this time, the frame rate permitted in S306 is displayed. The control unit 107 selects one of the frame rates displayed on the setting screen and determines whether or not the frame rate is set (S304). When the frame rate is set, the set frame rate is set. Is stored in the memory 103 and the process ends (S305).

  FIG. 4 is a diagram illustrating an example of a frame rate setting screen displayed in S303. A display screen 401 is a setting screen displayed on the display unit 106 in the normal recording mode. In the setting screen 401, a menu 402 is a menu item for a shooting function, and an item relating to a change in frame rate is selected here. A menu 403 is a menu item for changing the frame rate, and an item for setting the frame rate is selected here. A menu 404 is a menu on which settable frame rate values are displayed. Here, all values are displayed in the menu 404. The user can select an arbitrary frame rate by operating the operation unit 108 and moving the cursor 404a. Then, the value of the selected frame rate is set by the operation unit 108.

  A display screen 405 is a setting screen displayed on the display unit 106 in the pre-recording mode. In the setting screen 401, a menu 406 is a menu that displays settable frame rate values. Here, values other than 240, 480, and 960 are displayed. The user can select an arbitrary frame rate by operating the operation unit 108 and moving the cursor 404a. Then, the value of the selected frame rate is set by the operation unit 108.

  Next, the pre-recording mode setting process in S203 will be described. In the present embodiment, the frame rate value that can be set in the normal recording mode is different from the frame rate that can be set in the pre-recording mode. Therefore, when switching to the pre-recording mode is requested, whether to switch to the pre-recording mode is set based on the set frame rate. FIG. 5 is a flowchart showing the pre-recording mode setting process.

  First, the control unit 107 confirms the currently set frame rate value stored in the memory 103 by the processing of FIG. 3 (S501). Then, the control unit 107 determines whether or not the current frame rate is a predetermined frame rate that can be set in the pre-recording mode (S502). If the current frame rate is a predetermined frame rate that can be set in the pre-recording mode, the control unit 107 permits switching to the pre-recording mode (S503), and displays a pre-recording mode setting screen on the display unit 106. The display control unit 105 is controlled so as to display (S504). When the user operates the operation unit 108 to instruct the setting of the pre-recording mode (S505), the control unit 107 sets the pre-recording mode and proceeds to S204 in FIG.

  If the current frame rate is not a predetermined frame rate that can be set in the pre-recording mode in S502, the control unit 107 prohibits switching to the pre-recording mode (S506). Then, the control unit 107 sets the display control unit 105 to display a warning screen on the display unit 106 indicating that the frame rate that can be set in the pre-recording mode is not set and the switching to the pre-recording mode cannot be performed. Control is performed (S507).

Next, the reproduction process will be described.
When the playback unit is instructed by the operation unit 108, the control unit 107 causes the recording / playback unit 109 to play back the top portion of the moving image data included in the moving image data file (moving image file) recorded on the recording medium 110. To control. Then, the head portion of the reproduced moving image signal is decoded by the signal processing unit 104 and sent to the display control unit 105. The display control unit 105 reduces the size of the decoded top screen, generates a representative image, and displays it on the display unit 106. The user operates the operation unit 108 to select a desired representative image to be reproduced from the representative images of each moving image file displayed on the display unit 106 and to instruct reproduction.

  When the reproduction is instructed, the control unit 107 controls the recording / reproducing unit 109 to reproduce the moving image file corresponding to the selected representative image. The recording / reproducing unit 109 reproduces the designated moving image file from the recording medium and stores it in the memory 103. The signal processing unit 104 reads and decodes the moving image data from the memory 103 and stores it again in the memory 103. The display control unit 105 reads the decoded moving image data from the memory 103 and displays the reproduced moving image on the display unit 106. When there is an instruction to stop playback, the control unit 107 stops playback of the moving image file and displays the representative image on the display unit 106 again.

In the present embodiment, as described above, when a moving image shot and recorded at various frame rates is played back, it is played back and displayed at a predetermined frame rate, for example, 30 frames / second. Therefore, for example, when playing back a moving image shot at 60 fps, it is played back and displayed as a slow-motion moving image at ½ times speed. When a moving image shot at 15 fps is reproduced, it is reproduced and displayed as a double-speed fast motion moving image.
As described above, in the present embodiment, in the pre-recording mode, the frame rate at which the time of moving images that can be stored in the memory before recording is started is not set.
Therefore, the user can easily set an appropriate frame rate in the pre-recording mode.
In FIG. 5, when a frame rate other than the predetermined frame rate is set in S502, the warning screen is displayed and the processing is terminated. However, for example, the frame rate may be changed. For example, after the warning screen is displayed in S507, the frame rate setting screen 405 of FIG. 4 is automatically displayed on the display unit 106 to prompt the user to change the frame rate.
In the first embodiment, the compressed moving image data is repeatedly stored in the memory 103 in the pre-recording mode. However, uncompressed moving image data may be stored. In this case, the control unit 107 detects a frame n seconds before the recording start instruction from the uncompressed moving image data stored in the memory 103 in response to the recording start instruction. Then, the control unit 107 instructs the signal processing unit 104 to start encoding from the frame n seconds before. In accordance with an instruction from the control unit 107, the signal processing unit 104 starts encoding moving images and audio from a frame n seconds before the start of recording, and stores the encoded moving images and audio data in the memory 103. Thereafter, the recording / reproducing unit 109 reads the moving image and audio data from the memory 103 and starts recording on the recording medium 110. After starting the recording, the imaging unit 101 continuously captures moving image data and stores it in the memory 103. After the start of recording, the control unit 107 performs signal processing so that the moving image data is sequentially read from the memory 103 and encoded without waiting for n seconds of unencoded moving images to be stored in the memory 103. The unit 104 is controlled. Thereafter, in response to the recording stop instruction, the control unit 107 encodes up to the frame corresponding to the recording stop instruction, and then controls the signal processing unit 104 and the recording / reproducing unit 109 to stop the recording. After the recording is stopped, the control unit 107 instructs the imaging unit 101 to store the uncompressed moving image data in the memory 103 again.

(Second Embodiment)
Next, a second embodiment will be described. In the present embodiment, the configuration of the video camera 100 is the same as that shown in FIG. In the second embodiment, the frame rate setting process in the pre-recording mode is different from that in the first embodiment.

  FIG. 6 is a flowchart showing frame rate setting processing in the second embodiment. The processing in FIG. 6 is executed by the control unit 107 controlling each unit.

  When the user operates the operation unit 108 to instruct the setting of the frame rate, the control unit 107 determines whether the current recording mode is the normal recording mode or the pre-recording mode (S601). In the normal recording mode, the control unit 107 permits setting of all frame rates (S602). Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S603). Then, the control unit 107 selects one of the frame rates displayed on the setting screen and determines whether the frame rate is set (S604). When the frame rate is set, the set frame rate is determined. Is stored in the memory 103 and the process ends (S605).

  On the other hand, when the current recording mode is the pre-recording mode, the control unit 107 permits setting of some predetermined frame rates among the frame rates that can be set in the normal recording mode, and sets other frame rates. It is prohibited (S606). Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S607). At this time, in this embodiment, not all frame rates permitted in S606 but all frame rates that can be set in the normal recording mode are displayed. Then, the control unit 107 determines whether or not a predetermined frame rate that can be set in the pre-recording mode is selected from the frame rates displayed on the setting screen (S608). When a predetermined frame rate is selected, the control unit 107 determines whether or not the selected frame rate has been set (S609), stores information on the set frame rate in the memory 103, and ends. (S610).

  If a frame rate other than the predetermined frame rate is selected in step S <b> 608, the control unit 107 controls the display control unit 106 to display a warning screen for inquiring switching to the normal recording mode on the display unit 106. (S611). As a result, when there is an instruction to switch to the normal recording mode (S612), the control unit 107 stores the selected frame rate in the memory 103 (S613) and changes to the normal recording mode (S614). If there is no instruction to switch to the normal recording mode in S612, the process returns to S607 and the setting screen is displayed.

  When the frame rate is changed, the control unit 107 controls the imaging unit 101 so as to capture and output moving image data with the changed frame rate in response to an instruction to start recording. Further, the control unit 107 controls each unit so as to execute an encoding process or a recording process according to the set frame rate.

  FIG. 7 is a diagram illustrating an example of a frame rate setting screen according to the second embodiment. A setting screen 701 is displayed in the pre-recording mode. On the setting screen 701, menus 702 and 703 are the same as the menus 402 and 403 in FIG. The menu 704 displays settable frame rate values. Here, all values are displayed in the menu 704. The user can select an arbitrary frame rate by operating the operation unit 108 and moving the cursor 704a. In this state, for example, when the user operates the operation unit 108 and selects 480 fps, the control unit 107 displays a setting screen 705 including a warning screen 706 inquiring switching to the normal recording mode on the display unit 106. The display control unit 105 is controlled as described above. The user operates the operation unit 108 and moves the cursor 707 to turn off the pre-recording mode and select whether to switch to the normal recording mode. Here, when the switching to the normal recording mode is not instructed, the setting screen 701 is displayed again. When an instruction to switch to the normal recording mode is given, 480 fps is set as the frame rate, and the mode is changed to the normal recording mode.

As described above, in the present embodiment, in the pre-recording mode, when a frame rate at which the time of a moving image that can be stored in the memory is extremely shortened before the start of recording is selected, switching to the normal recording mode is inquired.
Therefore, the user can easily set an appropriate frame rate.

(Third embodiment)
Next, a third embodiment will be described. In the present embodiment, the configuration of the video camera 100 is the same as that shown in FIG. In the third embodiment, in the pre-recording mode, the user can select the time (pre-recording time) from the point of the recording start instruction to the frame where recording is actually started from a plurality of predetermined recording times. did. When the frame rate is changed, the frame rate setting process is changed according to the pre-recording time set at that time. When changing the pre-recording time, the pre-recording time setting process is changed according to the frame rate set at that time so that the pre-recording time is not shortened.

  FIG. 8A is a diagram showing pre-recording time information 801 that can be selected when each frame rate is set. As indicated by the information 801, the higher the set frame rate, the shorter the upper limit of the selectable pre-recording time. Also, when 480 and 960 are set as the frame rate, the pre-recording time is too short, so setting to the pre-recording mode is prohibited. In this embodiment, in the pre-recording mode, the storage capacity prepared in the memory 103 for storing the compressed moving image data in the recording standby state is the compressed moving image data having a frame rate of 30 fps for 24 seconds. The capacity can be stored for minutes. For example, a 120 fps moving image can be stored for 6 seconds.

  FIG. 8B is a diagram showing frame rate information 802 that can be selected when each pre-recording time is set. As shown at 802, the longer the set pre-recording time, the lower the upper limit of the selectable frame rate. That is, setting a frame rate that is equal to or higher than a predetermined frame rate determined for each pre-recording time is prohibited. Information 801 and 802 shown in FIG. 8 are stored in a non-illustrated nonvolatile memory, and the control unit 107 controls setting processing of the frame rate and the pre-recording time based on the information 801 and 802 shown in FIG.

  FIG. 9A is a flowchart showing the pre-recording mode setting process in S203 of FIG. 2 in the third embodiment. First, the control unit 107 confirms the currently set frame rate value stored in the memory 103 (S901). Then, the control unit 107 determines whether or not the current frame rate is a predetermined frame rate that can be set in the pre-recording mode (S902). When the current frame rate is a predetermined frame rate that can be set in the pre-recording mode, the control unit 107 permits switching to the pre-recording mode (S903), and supports the current frame rate based on the information 801. The pre-recording time setting to be performed is permitted (S904). Then, the control unit 107 controls the display control unit 105 to display the pre-recording mode setting screen on the display unit 106 (S905). The user operates the operation unit 108, selects a desired pre-recording time from the pre-recording times displayed on the setting screen, and instructs the setting of the pre-recording mode (S906). Then, the control unit 107 stores the selected pre-recording time information in the memory 103 (S907), sets the pre-recording mode, and proceeds to S204 in FIG.

  If it is determined in step S902 that the current frame rate is not a predetermined frame rate that can be set in the pre-recording mode, the process advances to step S908. The control unit 107 prohibits switching to the pre-recording mode (S908), and controls the display control unit 105 to display a setting screen in which the setting to the pre-recording mode is invalid on the display unit 106 ( S909).

  Also in this embodiment, the control unit 107 controls each unit so as to repeatedly store in the memory 103 the compressed moving image data having the frame rate set in the recording standby state of the pre-recording mode.

  FIG. 10 is a diagram illustrating an example of a setting screen displayed on the display unit 106 during the pre-recording mode setting process. In FIG. 10, a menu 1002 is a shooting function menu item, and an item for setting a special recording function is selected here. A menu 1003 is a menu item that can be set as a special recording function, and an item for setting the pre-recording mode is selected here. A setting screen 1001 is a setting screen displayed when the set frame rate is 480 fps. According to the information 801 in FIG. 8A, setting of the pre-recording mode is prohibited when the frame rate is 480 fps. Therefore, on the setting screen 1001, the setting menu for the pre-recording mode is displayed grayed out, and the setting for the pre-recording mode is disabled.

  The setting screen 1004 is a setting screen displayed when the set frame rate is 240 fps. When the frame rate is 240 fps, 3 seconds can be set as the pre-recording time. For this reason, the menu 1005 indicating the pre-recording time that can be set displays only 3 seconds as the pre-recording time. The user can select and set a desired pre-recording time from the pre-recording times displayed on the menu 1005 by operating the operation unit 108 and moving the cursor 1005a.

  A setting screen 1006 is a setting screen displayed when the set frame rate is 30 fps. When the frame rate is 30 fps, 3 seconds, 6 seconds, 12 seconds, and 24 seconds can be set as the pre-recording time. Therefore, the menu 1005 indicating the pre-recording time that can be set displays 3 seconds, 6 seconds, 12 seconds, and 24 seconds as the pre-recording time. The user can select and set a desired pre-recording time from the pre-recording times displayed on the menu 1005 by operating the operation unit 108 and moving the cursor 1005a.

  Thus, when setting the pre-recording time, the pre-recording time corresponding to the currently set frame rate is displayed on the setting screen as a pre-recording time that can be set. Since the user only has to select a desired pre-recording time from the displayed pre-recording times, the user can easily set the pre-recording mode and the pre-recording time.

  In this embodiment, the pre-recording time can be changed in the recording standby state in the pre-recording mode. FIG. 9B is a flowchart showing the pre-recording time changing process.

  When the user operates the operation unit 108 in the recording standby state in the pre-recording mode and requests a change in the pre-recording time, the control unit 107 confirms the currently set frame rate (S910). The control unit 107 detects a pre-recording time corresponding to the set frame rate based on the information 801 in FIG. 8A stored in the nonvolatile memory (S911). Then, the control unit 107 controls the display control unit 105 to display a pre-recording mode setting screen including information on the detected pre-recording time on the display unit 106 (S912). The user operates the operation unit 108, selects a desired pre-recording time from the pre-recording times displayed on the setting screen, and instructs the setting of the pre-recording time (S913). Then, the control unit 107 updates the information on the pre-recording time stored in the memory 103 with the selected pre-recording time (S914).

  When the pre-recording time is updated, the control unit 107 controls each unit so that the moving image is encoded again and stored in the memory 103 again. Thereafter, the control unit 107 controls each unit so as to repeatedly store the encoded moving image data in the storage region of the compressed moving image data in the memory 103.

  Next, the frame rate setting process will be described. Also in the present embodiment, in both the normal recording mode and the pre-recording mode, it is possible to set the frame rate of a moving image that is shot and recorded by the imaging unit 101 in the recording standby state.

  FIG. 11 is a flowchart showing a frame rate setting process in the third embodiment. The processing in FIG. 11 is executed by the control unit 107 controlling each unit.

  When the user operates the operation unit 108 to instruct the setting of the frame rate, the control unit 107 determines whether the current recording mode is the normal recording mode or the pre-recording mode (S1101). In the normal recording mode, the control unit 107 permits setting of all frame rates (S1102). Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S1103). Then, the control unit 107 selects one of the frame rates displayed on the setting screen and determines whether the frame rate is set (S1104). When the frame rate is set, the set frame rate is determined. Is stored in the memory 103 and the process ends (S1105).

  On the other hand, when the current recording mode is the pre-recording mode, the control unit 107 checks the currently set pre-recording time (S1106). Based on the information 802 in FIG. 8B, the control unit 107 permits setting of a frame rate corresponding to the currently set pre-recording time, and prohibits setting of other frame rates (S1107). . Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S1103). At this time, the frame rate permitted in step S1107 is displayed. Then, the control unit 107 selects one of the frame rates displayed on the setting screen and determines whether the frame rate is set (S1104). When the frame rate is set, the set frame rate is determined. Is stored in the memory 103 and the process ends (S1105).

  FIG. 12 is a diagram illustrating an example of a frame rate setting screen according to the third embodiment. 12, menus 1202 and 1203 are the same as menus 402 and 403 in FIG. 4, respectively. The menu 1204 displays settable frame rate values. The user can select an arbitrary frame rate by operating the operation unit 108 and moving the cursor 1204a.

  The setting screen 1201 is a frame rate setting screen displayed in S1103 when the pre-recording time is set to 24 seconds. According to the information 802 in FIG. 8B, the frame rates that can be set when the pre-recording time is 24 seconds are 12 fps, 15 fps, 24 fps, and 30 fps. Therefore, the menu 1204 displays 12 fps, 15 fps, 24 fps, and 30 fps.

  A setting screen 1205 is a frame rate setting screen displayed in S1103 when the pre-recording time is set to 3 seconds. According to the information 802 in FIG. 8B, the frame rates that can be set when the pre-recording time is 3 seconds are 12 fps, 15 fps, 24 fps, 30 fps, 60 fps, 120 fps, and 240 fps. Therefore, the menu 1204 displays 12 fps, 15 fps, 24 fps, 30 fps, 60 fps, 120 fps, and 240 fps.

Thus, when setting the frame rate in the pre-recording mode, the frame rate corresponding to the currently set pre-recording time is displayed on the setting screen as a settable frame rate. Since the user only has to select a desired frame rate from the displayed frame rates, the user can easily set the frame rate.
When the frame rate and the pre-recording time (n seconds) are set in this manner, the control unit 107 stores the frame rate information and the pre-recording time information in the memory 103. When a recording start instruction is issued, a moving image from a frame n seconds before the point in time when the recording start instruction is issued is read from the memory 103 and recording is started, as in the first and second embodiments. The subsequent recording processing is the same as in the first and second embodiments.

(Fourth embodiment)
Next, a fourth embodiment will be described. In the present embodiment, the configuration of the video camera 100 is the same as that shown in FIG. Also in the present embodiment, as in the third embodiment, the user can change the pre-recording time and the frame rate. In the present embodiment, the pre-recording mode setting process and the pre-recording time changing process are the same as the process of FIG. 9 in the third embodiment. In this embodiment, the frame rate setting process is different from that of the third embodiment.

  FIG. 13 is a flowchart illustrating a frame rate setting process according to the fourth embodiment. The processing in FIG. 13 is executed by the control unit 107 controlling each unit. Also in the present embodiment, in both the normal recording mode and the pre-recording mode, it is possible to set the frame rate of a moving image that is shot and recorded by the imaging unit 101 in the recording standby state.

  When the user operates the operation unit 108 to instruct the setting of the frame rate, the control unit 107 determines whether the current recording mode is the normal recording mode or the pre-recording mode (S1301). In the normal recording mode, the control unit 107 permits setting of all frame rates (S1302). Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S1303). Then, the control unit 107 determines whether any of the frame rates displayed on the setting screen is selected and sets the frame rate (S1304). When the frame rate is set, the set frame rate is set. Is stored in the memory 103 and the process ends (S1305).

  On the other hand, when the current recording mode is the pre-recording mode, the control unit 107 checks the currently set pre-recording time (S1306). Based on the information 801 in FIG. 8B, setting of a frame rate that is not prohibited from switching to the pre-recording mode is permitted, and setting of other frame rates is prohibited (S1307). Further, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S1308). At this time, in this embodiment, not all frame rates permitted in S1307 but all frame rates that can be set in the normal recording mode are displayed. Then, the control unit 107 determines whether or not a predetermined frame rate that can be set in the pre-recording mode is selected from the frame rates displayed on the setting screen (S1309). When the predetermined frame rate is selected, the control unit 107 stores the moving image shot at the selected frame rate in the currently set pre-recording time memory 103 based on the information 801 in FIG. It is determined whether or not recording is possible (S1310). Specifically, in information 801, it is determined whether or not the currently set pre-recording time is included in the pre-recording time corresponding to the selected frame rate. When the moving image shot at the selected frame rate can be recorded in the memory 103 for the currently set pre-recording time, the control unit 107 determines that the selected frame rate has been set as a new frame rate by the user. It is determined whether or not (S1311). When a new frame rate is set, the control unit 107 stores information on the set frame rate in the memory 103 and ends (S1312).

  If the moving image having the selected frame rate cannot be recorded in the pre-recording time memory 103 in S1310, the control unit 107 selects the longest recording time (upper limit time) among the pre-recording times corresponding to the selected frame rate. ) Is detected (S1313). Then, the control unit 107 instructs the display control unit 105 to display on the display unit 106 a warning screen for inquiring the user whether to change the pre-recording time to the detected upper limit time (S1314). . As a result, when the user instructs to change the pre-recording time (S1315), the control unit 107 stores the selected frame rate in the memory 103 as a new frame rate (S1316). Then, the control unit 107 updates the pre-recording time information stored in the memory 103 with the pre-recording time detected in S1313 (S1317). If there is no instruction to change the pre-recording time in S1315, the process returns to S1308 and the frame rate setting screen is displayed again.

  In S1309, when a frame rate other than the predetermined frame rate is selected, the control unit 107 controls the display control unit 106 so that a warning screen for inquiring switching to the normal recording mode is displayed on the display unit 106. (S1318). As a result, when there is an instruction to switch to the normal recording mode (S1319), the control unit 107 stores the selected frame rate in the memory 103 (S1320) and changes to the normal recording mode (S1321).

  FIG. 14 is a diagram illustrating an example of a frame rate setting screen according to the fourth embodiment. 14, menus 1402 and 1403 are the same as menus 402 and 403 in FIG. 4, respectively. The menu 1404 displays a frame rate value. The user can select an arbitrary frame rate by operating the operation unit 108 and moving the cursor 1404a.

  As shown in the setting screen 1401, when the pre-recording time currently set is 24 seconds, a warning screen 1406 is displayed on the setting screen 1405 when 240 fps is selected by the cursor 1401a. When 240 fps is selected, according to the information 801 in FIG. 8A, the pre-recording time cannot be set to 24 seconds at 240 fps. Therefore, a screen 1406 for inquiring whether to change the pre-recording time to 3 seconds, which is a pre-recording time corresponding to 240 fps, is displayed. The user operates the operation unit 108 and moves the cursor 1407 to instruct whether to change the pre-recording time.

  As a result, when an instruction to change the pre-recording time is given, a setting screen 1408 is displayed on the display unit 106.

In this way, when setting the frame rate in the pre-recording mode, if the moving image having the selected frame rate cannot be recorded for the currently set pre-recording time, an inquiry screen for changing the pre-recording time is displayed. Therefore, the user can easily change the pre-recording time as the frame rate is changed.
When the frame rate and the pre-recording time (n seconds) are set in this manner, the control unit 107 stores the frame rate information and the pre-recording time information in the memory 103. When a recording start instruction is issued, a moving image from a frame n seconds before the point in time when the recording start instruction is issued is read from the memory 103 and recording is started, as in the first and second embodiments. The subsequent recording processing is the same as in the first and second embodiments.

(Fifth embodiment)
Next, a fifth embodiment will be described. In the present embodiment, the configuration of the video camera 100 is the same as that shown in FIG. Also in this embodiment, as in the third and fourth embodiments, the user can change the pre-recording time and the frame rate. In the present embodiment, the frame rate setting process and the pre-recording mode setting process are different from those in the third and fourth embodiments.

  FIG. 15 is a flowchart illustrating a frame rate setting process according to the fifth embodiment. The processing in FIG. 15 is executed by the control unit 107 controlling each unit. Also in the present embodiment, in both the normal recording mode and the pre-recording mode, it is possible to set the frame rate of a moving image that is shot and recorded by the imaging unit 101 in the recording standby state.

  When the user operates the operation unit 108 to instruct the setting of the frame rate, the control unit 107 determines whether the current recording mode is the normal recording mode or the pre-recording mode (S1501). In the normal recording mode, the control unit 107 permits setting of all frame rates (S1502). Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S1503). The control unit 107 selects one of the frame rates displayed on the setting screen and determines whether or not the frame rate is set (S1504). When the frame rate is set, information on the set frame rate is determined. Is stored in the memory 103 and the process ends (S1505).

  On the other hand, when the current recording mode is the pre-recording mode, setting of a frame rate that is not prohibited from switching to the pre-recording mode is permitted based on the information 801 in FIG. Setting is prohibited (S1506). Then, the control unit 107 controls the display control unit 105 to display a frame rate setting screen on the display unit 106 (S1507). At this time, in this embodiment, not all frame rates permitted in S1506 but all frame rates that can be set in the normal recording mode are displayed. The control unit 107 determines whether or not a predetermined frame rate that can be set in the pre-recording mode is selected from the frame rates displayed on the setting screen (S1508). When a predetermined frame rate is selected, the control unit 107 displays, on the display unit 106, a pre-recording time setting screen including information at the time of pre-recording capable of recording a moving image with the selected frame rate based on the information 801. The display control unit 105 is controlled to display (S1509). When the pre-recording time is selected by the user and a new frame rate is set (S1510), the control unit 107 stores information on the set frame rate in the memory 103 (S1511). Further, the control unit 107 updates the pre-recording time information stored in the memory 103 with the selected pre-recording time (S1312).

  If a frame rate other than the predetermined frame rate is selected in step S1508, the control unit 107 controls the display control unit 106 so that a warning screen for inquiring switching to the normal recording mode is displayed on the display unit 106. (S1513). As a result, when there is an instruction to switch to the normal recording mode (S1514), the control unit 107 stores the selected frame rate in the memory 103 (S1515) and changes to the normal recording mode (S1516).

  FIG. 16 is a diagram illustrating an example of a frame rate setting screen according to the fifth embodiment. In FIG. 16, menus 1602 and 1603 are the same as menus 402 and 403 in FIG. 4, respectively. The menu 1604 displays a frame rate value. The user can select an arbitrary frame rate by operating the operation unit 108 and moving the cursor 1604a.

As shown in the setting screen 1601, when 120 fps is selected by the cursor 1401a, a pre-recording time setting screen 1606 including information on the pre-recording time corresponding to the 120 fps is displayed in the setting screen 1605. The user operates the operation unit 108 to move the cursor 1607 and select a pre-recording time.
As a result, when the pre-recording time is selected, a setting screen 1608 is displayed on the display unit 106.

  As described above, when the frame rate is changed in the pre-recording mode, a pre-recording time setting screen including information on the pre-recording time corresponding to the changed frame rate is automatically displayed. Therefore, the user can easily change the pre-recording time as the frame rate is changed.

  FIG. 17 is a flowchart showing the pre-recording mode setting process in S203 of FIG. 2 in the fifth embodiment. First, the control unit 107 controls the display control unit 105 to display the pre-recording mode setting screen on the display unit 106 (S1701). At this time, all pre-recording times are displayed to the user. Then, the control unit 107 determines whether or not the pre-recording time is selected from the pre-recording times displayed on the setting screen (S1702). When the pre-recording time is selected, the control unit 107 displays a frame rate setting screen including the frame rate corresponding to the selected pre-recording time on the display unit 106 based on the information 802 in FIG. The display control unit 105 is controlled to do so (S1703). When the frame rate is selected by the user and the pre-recording time is set (S1704), the control unit 107 updates the information on the pre-recording time stored in the memory 103 with the set pre-recording time (S1705). Further, the control unit 107 stores the set frame rate in the memory 103 and proceeds to S204 in FIG.

  FIG. 18 is a diagram illustrating an example of a setting screen displayed on the display unit 106 during the pre-recording mode setting process in the fifth embodiment. In FIG. 18, menus 1802 and 1803 are the same as menus 1002 and 1003 in FIG. In addition, a pre-recording time is displayed on the menu 1804, and the user operates the operation unit 108 to move the cursor 1804a, thereby selecting a desired pre-recording time from the pre-recording times displayed on the menu 1804. Can be selected and set. When the user selects 24 seconds as the pre-recording time on the setting screen 1801, a frame rate setting screen 1806 including a frame rate corresponding to the selected pre-recording time is displayed in the setting screen 1805. Here, 12 fps, 15 fps, 24 fps, and 30 fps are displayed as frame rates corresponding to the selected pre-recording time of 24 seconds. The user selects a frame rate with the cursor 1807.

  When 15 fps is selected on the frame rate setting screen 1806, a setting screen 1808 is displayed.

As described above, when the pre-recording time is changed, a frame rate setting screen including only information of the frame rate corresponding to the changed pre-recording time is automatically displayed. Therefore, the user can easily change the frame rate as the pre-recording time is changed.
When the frame rate and the pre-recording time (n seconds) are set in this manner, the control unit 107 stores the frame rate information and the pre-recording time information in the memory 103. When a recording start instruction is issued, a moving image from a frame n seconds before the point in time when the recording start instruction is issued is read from the memory 103 and recording is started, as in the first and second embodiments. The subsequent recording processing is the same as in the first and second embodiments.

  In the fifth embodiment, the pre-recording time and frame rate that can be set every time the frame rate or pre-recording time is changed in accordance with the movement of the cursor on the frame rate or pre-recording time selection screen. The information may be displayed.

  For example, on the frame rate setting screen 1901 shown in FIG. 19, each time the cursor 1904a moves, settable pre-recording time information 1905 corresponding to the frame rate selected by the cursor 1904a is automatically displayed. In FIG. 19, menus 1902 and 1903 are the same as menus 402 and 403 in FIG. 4, respectively.

  Further, on the pre-recording time setting screen 1906 in FIG. 19, each time the cursor 1909a moves, information 1910 on the frame rate that can be set corresponding to the pre-recording time selected by the cursor 1909a is automatically displayed. In FIG. 19, menus 1907 and 1908 are the same as the menus 1002 and 1003 in FIG. 10, respectively.

  By displaying in this way, the user can easily confirm the pre-recording time and frame rate that can be set when the selected frame rate or pre-recording time is set.

  Thereafter, the processing after the frame rate and pre-recording time are selected is the same as the processing in FIG. 15 or FIG.

  Another object of the present invention is to supply a storage medium storing software program codes for realizing the functions of the above-described embodiments to a system or apparatus, and the computer (or CPU or MPU) of the system or apparatus stores the storage medium. Needless to say, this can also be achieved by reading and executing the program code stored in.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the program code itself and the storage medium storing the program code constitute the present invention.

  As a storage medium for supplying the program code, for example, a flexible disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (basic system or operating system) running on the computer based on the instruction of the program code. Needless to say, a case where the functions of the above-described embodiment are realized by performing part or all of the actual processing and the processing is included.

  Further, after the program code read from the storage medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function is determined based on the instruction of the program code. It goes without saying that the CPU or the like provided in the expansion board or function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

  The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. That is, the present invention can be implemented in various forms without departing from the technical idea or the main features thereof.

Claims (6)

Imaging means for outputting moving image data of a set frame rate;
A memory for storing moving image data obtained by the imaging means;
A recording means for recording the moving image data obtained by the imaging means on a recording medium in response to an instruction to start recording;
A first recording mode for starting recording by the recording unit from a frame corresponding to the recording start instruction for the moving image data output from the imaging unit; and an instruction to start recording the moving image data output by the imaging unit Until the recording starts, and in response to the recording start instruction, recording by the recording means starts from a frame corresponding to a predetermined time before the recording start instruction in the moving image data stored in the memory. Mode setting means for setting any one of the second recording modes to start recording as a recording mode;
Frame rate setting means for setting the frame rate to any one of a plurality of frame rates ;
E Bei and control means for controlling the setting processing of the frame rate by the frame rate setting section,
In the second recording mode, the control means does not set a predetermined frame rate at which the recording time of the moving image data stored in the memory is shorter than the predetermined time based on the predetermined time. And a control unit configured to perform control so that one of a plurality of frame rates including the predetermined frame rate is set in the first mode . Comprising display means for displaying information on a plurality of settable frame rates on a display device;
The frame rate setting means includes means for a user to specify a frame rate from the frame rate displayed on the display means,
The recording apparatus according to claim 1, wherein the control unit controls the display unit so as not to display the information of the predetermined frame rate in the second recording mode. The control means performs control so as not to change from the first recording mode to the second recording mode when the predetermined frame rate is set in the first recording mode. Item 3. The recording apparatus according to Item 1 or 2. A time setting means for setting the predetermined time in the second recording mode;
The control means, based on the predetermined time set by the time setting means, the recording time of moving image data stored in the memory in the second recording mode, the predetermined time set by the time setting means The recording apparatus according to claim 1 , wherein control is performed such that a predetermined frame rate that is shorter than the predetermined time is not set . 2. The recording time of moving image data repeatedly stored in the memory until an instruction to start recording in the second recording mode is shortened as the frame rate of the moving image data increases . Recording device. In a control method for a recording apparatus including an imaging unit that outputs moving image data at a set frame rate, and a memory that stores the moving image data obtained by the imaging unit,
A recording step of recording the moving image data obtained by the imaging means on a recording medium in response to an instruction to start recording;
A first recording mode for starting recording in the recording step from a frame corresponding to the recording start instruction for the moving image data output from the imaging unit; and an instruction to start recording the moving image data output by the imaging unit Until it is stored in a predetermined storage area of the memory, and in response to the recording start instruction, from a frame corresponding to a predetermined time before the recording start instruction in the moving image data stored in the memory A mode setting step for setting any one of the second recording modes for starting recording by the recording step as a recording mode;
A frame rate setting step for setting the frame rate to any one of a plurality of frame rates ;
E Bei a control step of controlling the setting processing of the frame rate in the frame rate setting step,
In the second recording mode, the control step does not set a predetermined frame rate at which the recording time of the moving image data stored in the memory is shorter than the predetermined time based on the predetermined time. And a step of controlling so that one of a plurality of frame rates including the predetermined frame rate is set in the first mode .

Images