JP4551976B2 - COMMUNICATION DEVICE, ITS CONTROL METHOD, AND COMPUTER-READABLE STORAGE MEDIUM - Google Patents

Description

  The present invention relates to a communication device, a control method thereof, and a computer-readable storage medium.

  An imaging device (for example, an electronic still camera) that records a still image usually has a recording medium with a relatively small capacity, and records a still image on the recording medium. Examples of the recording medium include a semiconductor memory such as an SRAM and a flash memory, and a magnetic recording medium such as a floppy (registered trademark) disk.

  On the other hand, in an imaging device (for example, a camera-integrated VTR) that records a moving image, the moving image is recorded on a recording medium such as a magnetic tape.

  Image information captured and recorded by these imaging devices can be viewed by using the image reproduction function of the imaging device itself.

  By the way, normally, in order to edit, process, and print image information, image information recorded by an imaging device is recorded in a recording device (for example, a storage device) having a large-capacity recording medium, and then a personal computer. (Hereinafter referred to as a personal computer).

Japanese Patent Application Laid-Open No. 09-065268 Japanese Patent Laid-Open No. 08-223341 Japanese Patent Laid-Open No. 05-300083

  When the image information recorded by the imaging device is recorded on the recording device as described above, the user must connect the imaging device and the recording device with a cable or connect them using an infrared transceiver or the like.

  However, when connected using a cable, there is a problem that the distance between the imaging device and the recording device depends on the length of the cable. In addition, when the cable is short, it is necessary to connect the imaging device and the recording device close to each other, which is complicated.

  On the other hand, when an infrared transceiver or the like is used for connection, there is a problem in that a transmission error rate increases depending on the communication state of the transmission path, and normal data communication cannot be performed.

  In the past, when transferring image information recorded in the imaging apparatus to the recording apparatus, it was complicated because the user had to manually operate everything from selection of image information to data transfer.

  Furthermore, after the image information recorded in the image pickup apparatus is recorded in the recording apparatus, all the operations for deleting the image information on the image pickup apparatus side need to be manually operated by the user, which is complicated.

  The present invention solves such problems, reduces the complexity of deleting data already recorded on a recording medium from among data recorded on an external device, and is recorded on the recording medium. An object of the present invention is to reduce the complexity of deleting data already recorded in an external device.

  The communication device of the present invention comprises: communication means for receiving image data recorded on the external recording device from an external recording device; and recording means for recording image data received by the communication means on a recording medium. A generating unit that generates a list of image data recorded on the recording medium; and a control unit, wherein the communication unit stores the list relating to the image data recorded on the external recording device. And the control means is recorded on the recording medium out of the image data recorded on the external recording device based on the list received by the communication means and the list generated by the generation means. Information for deleting the stored image data from the external recording device, and transmitting the generated information to the external recording device by the communication means. The features.

  ADVANTAGE OF THE INVENTION According to this invention, the complexity at the time of deleting the data already recorded on the recording medium among the data currently recorded on the external apparatus can be reduced, and the data recorded on the recording medium can be reduced. Of these, the complexity of deleting data already recorded in the external device can be reduced.

It is a block diagram which shows an example of an image communication system. 1 is a block diagram illustrating an imaging apparatus 100. FIG. 2 is a block diagram illustrating a recording apparatus 200. FIG. 6 is a flowchart illustrating a processing procedure of the imaging apparatus 100. 10 is a flowchart illustrating a processing procedure of the recording apparatus 200. FIG. 11 is a block diagram illustrating an imaging apparatus 500. 12 is a flowchart illustrating a processing procedure of the imaging apparatus 500. It is a figure explaining an example of a data list.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the image communication system according to the first embodiment includes two image pickup devices (each image pickup device is a digital image) that records a picked-up image (including one of a still image and a moving image). For example, a camera-integrated digital video recorder or digital camera 100 and a recording device (for example, storage device, home) having a large-capacity recording medium that can be connected to a personal computer (hereinafter referred to as a personal computer) or an image editing device. 200 which is a server device). Since each imaging device 100 and the recording device 200 perform wireless communication, they can be arranged at remote locations.

  Each imaging device 100 captures and records in the past when the distance between itself and the recording device 200 is within a range where normal communication can be performed and the communication state of the transmission path is good. The recording mode (including images and sounds) is automatically wirelessly transmitted to the remote recording apparatus 200. On the other hand, the recording apparatus 200 has an operation mode for recording and storing recording data (including images and sound) automatically transmitted from each imaging apparatus 100 by radio. Hereinafter, these operation modes are simply referred to as “automatic transmission mode”.

  For example, the case where the automatic transmission modes of the image capturing apparatuses A100 and B100 and the recording apparatus 200 are ON in FIG. 1 will be described. In this case, since the imaging device A100 and the recording device 200 are disposed within a communicable range, if the communication state of the transmission path is good, wireless transmission is started. On the other hand, since the imaging apparatus B100 and the recording apparatus 200 are not arranged within a communicable range, they operate independently even if the communication state of the transmission path is good.

  Hereinafter, the configuration and the processing operation of the image communication system in the first embodiment will be described in detail with reference to the drawings.

  FIG. 2 is a block diagram illustrating a configuration of the imaging apparatus 100. Hereinafter, the configuration of each unit will be described. In FIG. 2, the imaging unit 1 includes an imaging element such as a CCD and captures an optical image of a subject to generate an image signal in a predetermined format. Here, the imaging unit 1 captures and outputs not only a still image but also a moving image.

  The digital image processing unit 2 digitizes the image signal generated by the imaging unit 1 and performs high-efficiency encoding. For example, when a still image is captured, the still image is compression-encoded based on the JPEG method. When a moving image is captured, the moving image is compression-encoded based on the MPEG system.

  The microphone 3 digitizes external sound.

  The digital audio processing unit 4 digitizes the audio signal digitized by the microphone 3 and performs high-efficiency encoding.

  The header information generation unit 5 automatically generates unique header information (also referred to as an index) corresponding to image information and audio information every time the user starts an imaging operation. Each heading information is recorded as a data list in a predetermined recording area of the recording medium 10.

  An example of the structure of the data list is shown in FIG. In FIG. 8, 801 is an area for recording an index number for identifying each heading information, 802 is an area for recording a title input in advance using the operation unit 13, and 803 is an area for recording the date and time when a captured image is created. It is. Reference numeral 804 denotes an area for recording the name of an image file, and reference numeral 805 denotes an area for recording the name of an audio file. By recording up to the extension of each data file in these areas 804 and 805, the data format and data type (whether it is a moving image or a still image) of each data file can be recognized. Reference numeral 806 denotes an area for setting a transmission end flag, which will be described later, 807, an area for setting a reproduction skip flag, which will be described later, and 808, an area for setting a data deletion flag, which will be described later. Reference numeral 809 denotes an area for setting an index number of other heading information. By this area 809, a link with other heading information can be recognized.

  Referring back to FIG. 2, the recording / reproducing unit 6 records each digital image information and each digital audio information on a recording medium (consisting of a magnetic tape, a magnetic disk, etc.) 10 in association with the header information and records them. Playback from the medium 10. Digital image information and digital audio information are recorded as one file or a plurality of files. For example, in the case of MPEG format, digital image information and digital audio information are recorded in the same file. In the case of the JPEG format, image information and audio information are recorded in separate files.

  The control unit 7 controls the overall operation of the imaging apparatus 100. In particular, the procedure for controlling the operation of the recording / reproducing unit 6 will be described later. The control unit 7 reads the program code recorded in advance in the memory 11 and controls the operation of the entire imaging apparatus 100.

  The wireless communication unit 8 generates transmission data from one header information and corresponding digital image information and digital audio information (hereinafter simply referred to as recording data), and after the transmission data is subjected to, for example, spread spectrum modulation, the antenna 9 is connected. Via wireless transmission to the remote recording device 200. The wireless communication unit 8 also wirelessly transmits the data list of the imaging apparatus 100 as transmission data. Here, the wireless communication unit 8 performs spread spectrum modulation on the transmission data using a code division multiplexing method. Thereby, data communication at a high transmission rate can be realized.

  Further, the wireless communication unit 8 detects whether or not the distance between the own apparatus and the recording apparatus 200 is within a range where normal communication can be performed and whether or not the communication state of the transmission path is good. A circuit 12 is included. The detection result of the detection circuit 12 is supplied to the control unit 7 as a communication state signal.

  Further, the wireless communication unit 8 receives its own data list (reproduction skip flag or data deletion flag is set) and control signal returned from the external recording device 200 and supplies them to the control unit 7. To do.

  The operation unit 13 instructs the control unit 7 and the like to perform an imaging request, ON / OFF of the automatic transmission mode, and other operations.

  Note that the imaging apparatus 100 according to the first embodiment has been described with respect to the configuration in which transmission data is wirelessly transmitted via the antenna 9, but the configuration is not limited thereto. For example, the transmission data may be modulated into infrared rays or laser light and transmitted via an infrared LED or laser diode.

  FIG. 3 is a block diagram illustrating a configuration of the recording apparatus 200. Hereinafter, the configuration of each unit will be described. In FIG. 3, the wireless communication unit 21 demodulates transmission data received by the antenna 20, captures a data list (a reproduction skip flag or a data deletion flag is set) and a control signal of the image capturing apparatus 100, and images a remote location. Wirelessly transmitted to the apparatus 100.

  The recording information detection unit 22 detects a data list and heading information corresponding to each recording data from the reception signal demodulated by the wireless communication unit 21.

  The recording processing unit 23 recognizes the data format and data type of the recording data from the header information corresponding to each recording data. Here, when the recording data is set to be converted into a predetermined data format and recorded, the recording processing unit 23 converts the received recording data into the predetermined format. For example, a case where the predetermined data format is the MPEG format and the data format of the received recording data is the JPEG format will be described. In this case, the recording processing unit 23 converts the recording data in the JPEG format into the MPEG format. On the other hand, when the received recording data is in the MPEG format, the recording processing unit 23 records without converting the data format. In this way, by composing and recording still images and moving images in the same data format, it is possible to reduce the complexity of image processing (editing, processing, composition, etc.) after recording. The above-described processing is not limited to the MPEG format, but may be another data format.

  The control unit 24 reads the program code recorded in advance in the memory 28 and controls the operation of the entire recording apparatus 200.

  The recording / reproducing unit 25 records each heading information in the data list, and records each recording data in a recording medium (made of a magnetic tape, a magnetic disk, etc.) 27 in association with the heading information. Reproduce. The data list of the recording device 200 is configured for each imaging device 100 and is recorded in a predetermined recording area of the recording medium 27.

  The heading information comparison unit 26 compares the data list transmitted from the imaging device 100 with the data list recorded on the recording medium 27, and detects whether there is heading information whose contents match.

  The operation unit 29 instructs the control unit 24 to perform a deletion request, ON / OFF of an automatic transmission mode, setting of a data format (MPEG format in the present embodiment) that is to be automatically converted and recorded.

  In addition, although the recording apparatus 200 in the first embodiment has been described with respect to the configuration in which the recording data of the imaging apparatus is received via the antenna 20, the present invention is not limited thereto. For example, the recording data modulated by infrared light or laser light may be received via an infrared LED or laser diode.

  As described above, the imaging apparatus 100 and the recording apparatus 200 in the first embodiment are configured.

  Next, the operation of the imaging device 100 and the operation of the recording device 200 in the first embodiment will be described in detail.

  First, the operation of the imaging apparatus 100 will be described. When the automatic transmission mode is OFF, the imaging apparatus 100 operates as a normal operation mode. In this case, the imaging apparatus 100 operates alone without performing wireless communication with the recording apparatus 200. The normal operation mode includes an imaging mode and a reproduction mode. In the imaging mode, a still image or a moving image is captured according to the presence / absence of an “imaging request” from the user, and these are recorded on the recording medium 10 together with audio information. In the reproduction mode, the image and sound recorded on the recording medium 10 are selected and reproduced.

  Next, the case where the automatic transmission mode is ON will be described. Even in this case, the imaging apparatus 100 can use the above-described imaging mode and reproduction mode. However, when an operation such as “image pickup request” is not input for a predetermined time, the image pickup apparatus 100 performs the following operation.

  Whether the wireless communication unit 8 included in the imaging apparatus 100 and the wireless communication unit 21 included in the recording apparatus 200 are within a range in which normal communication can be performed with each other, and whether the communication state of the transmission path is good. Detection is performed at a predetermined timing, and it is determined whether or not communication is possible.

  First, (1) a case where it is determined that communication is possible with each other will be described. In this case, the imaging apparatus 100 automatically performs control so that the recording data is wirelessly transmitted.

  In such a case, the wireless communication unit 8 of the imaging apparatus 100 supplies a communication state signal indicating “communication possible” to the control unit 7. The recording / reproducing unit 6 reproduces the recording data recorded on the recording medium 10 based on the control of the control unit 7. The recording data reproduced from the recording / reproducing unit 6 is modulated by the wireless communication unit 8 (for example, spread spectrum modulation) and wirelessly transmitted to the recording device 200 via the antenna 9.

  Similarly, the wireless communication unit 21 of the recording apparatus 200 supplies a communication state signal indicating “communicable” to the control unit 24. The control unit 24 controls the recording / reproducing unit 25 to prepare for recording the recording data.

  Next, (2) a case where it is determined that good wireless communication cannot be performed due to movement of the imaging apparatus 100 or the recording apparatus 200, an obstacle on the transmission path, and the like will be described. In this case, the imaging apparatus 100 automatically controls the recording data not to be wirelessly transmitted.

  In such a case, the wireless communication unit 8 of the imaging apparatus 100 supplies a communication state signal indicating “communication impossible” to the control unit 7. The recording / reproducing unit 6 stops the reproduction of the recorded data based on the control of the control unit 7. Here, the recording data whose reproduction has been stopped is reproduced again from the beginning when communication becomes possible next time.

  Similarly, the wireless communication unit 21 of the recording apparatus 200 supplies a communication state signal indicating “communication impossible” to the control unit 24. The recording / reproducing unit 25 stops the recording of the received data based on the control of the control unit 24. Here, the control unit 24 performs control so that the received data that has been stopped during recording is deleted, and the received data can be recorded again from the beginning.

  Next, (3) a case where it is determined that the communication state has been successfully recovered from the failure and communication is possible with each other will be described. In this case, the imaging apparatus 100 automatically restarts wireless transmission of recording data.

  In such a case, the wireless communication unit 8 of the imaging apparatus 100 supplies a communication state signal indicating “communication recovery” to the control unit 7. The recording / reproducing unit 6 resumes reproduction of the recorded data based on the control of the control unit 7. Here, the recording / reproducing unit 6 resumes reproduction in units of data corresponding to the above-described heading information. Therefore, when the reproduction of data corresponding to certain heading information is stopped halfway, the data is reproduced from the beginning again.

  Similarly, the wireless communication unit 21 of the recording apparatus 200 supplies a communication state signal indicating “communication recovery” to the control unit 24. The recording / reproducing unit 25 resumes the recording of the received data based on the control of the control unit 24. Here, the recording / reproducing unit 25 performs recording in data units corresponding to the above-described heading information. Therefore, when the recording of data corresponding to certain heading information is stopped halfway, the data is recorded again from the beginning.

  The processes (1) to (3) described above are executed until all the recording data recorded on the recording medium 10 is recorded on the recording medium 27. After the transmission of all the recording data is completed, the imaging apparatus 100 wirelessly transmits a data end signal to the recording apparatus 200. After receiving this data end signal, the recording apparatus 200 stops the recording operation. Then, after the user records a new captured image, the above-described processing is automatically started again.

  Next, the operation of the recording apparatus 200 will be described. When the automatic transmission mode is OFF, the recording apparatus 200 operates as a normal operation mode. In this case, the recording apparatus 200 operates alone without performing wireless communication with each imaging apparatus 100.

  On the other hand, when the automatic transmission mode is ON, the recording apparatus 200 performs the following operation. The recording apparatus 200 receives the data list of the imaging apparatus 100 and supplies the data list to the header information comparison unit 26. The heading information comparison unit 26 compares the data list of the imaging device 100 and the data list of the recording device 200, and determines whether there is heading information having the same content.

  First, (4) a case where the user has not set a “deletion request” in advance will be described. When there is heading information having the same content, the control unit 24 sets a reproduction skip flag in an area 807 corresponding to the heading information in the data list of the imaging apparatus 100. On the other hand, the playback skip flag is not set for heading information whose contents do not match.

  After the processing corresponding to all the heading information included in the data list of the imaging device 100 is completed, the heading information comparison unit 26 stores the data list (with a reproduction skip flag) of the imaging device 100 in the control unit 24 and the wireless communication unit 21. To the imaging apparatus 100 via

  Based on this data list, the imaging apparatus 100 skips the reproduction of the recording data for which the reproduction skip flag is set, and sequentially wirelessly transmits the other recording data. Thereby, the imaging apparatus 100 can prevent the process of retransmitting the recording data already recorded in the recording apparatus 200, and can automatically transmit other recording data wirelessly.

  Next, (5) a case where the user has set a “deletion request” in advance will be described. When there is heading information whose contents match, the control unit 24 sets a data deletion flag in an area 808 corresponding to the heading information in the data list of the imaging apparatus 100. On the other hand, the data deletion flag is not set for heading information whose contents do not match. After the processing corresponding to all the heading information included in the data list of the imaging device 100 is completed, the heading information comparison unit 26 transmits the data list (with data deletion flag) of the imaging device 100 to the control unit 24 and the wireless communication unit 21. To the imaging apparatus 100 via

  Based on this data list, the imaging apparatus 100 deletes the recording data for which the data deletion flag is set, and sequentially wirelessly transmits the other recording data. As a result, it is possible to prevent the imaging apparatus 100 from retransmitting the recording data already recorded in the recording apparatus 200, and to automatically wirelessly transmit other recording data. . Further, since the recording data on the imaging apparatus 100 side can be automatically deleted, the trouble of replacing the recording medium of the imaging apparatus 100 with another recording medium is reduced, and one recording medium can be used efficiently. Can do.

  FIG. 4 is a flowchart for describing the processing procedure of the imaging apparatus 100 according to the first embodiment. The control unit 7 of the imaging apparatus 100 controls the operation of the entire imaging apparatus 100 according to the flowchart of FIG. Here, the program code for realizing the flowchart of FIG. 4 is stored in the memory 11.

  In step S401, the control unit 7 determines whether or not the automatic transmission mode is ON.

  If the automatic transmission mode is not ON, the control unit 7 executes the normal operation mode (step S419).

  On the other hand, when the automatic transmission mode is ON, in step S402, the control unit 7 determines whether or not there is an imaging request from the user. When there is no imaging request, in step S403, the control unit 7 determines whether or not the recording / reproducing unit 6 is in a recording or reproducing state. If it is not in the recording or reproduction state, in step S404, the control unit 7 determines whether or not there is no operation input from the user for a predetermined time.

  When there is no operation input from the user for a predetermined time, in step S405, the control unit 7 determines whether or not communication is possible based on a communication state signal output from the wireless communication unit 8. If it is determined that communication is possible, the control unit 7 wirelessly transmits the data list recorded in the recording medium 10 to the recording device 200 in step S406. Here, the header information in which the transmission end flag is already set is not transmitted. The recording apparatus 200 compares this data list with a data list managed by the recording apparatus 200. If there is heading information whose contents match, a reproduction skip flag or a data deletion flag is set in the heading information. After the processing for all the found information in the data list is completed, the recording apparatus 200 returns this data list to the imaging apparatus 100.

  Based on the data list returned from the recording apparatus 200, the imaging apparatus 100 determines whether or not the recording data corresponding to each heading information is sequentially wirelessly transmitted. For the header information for which the playback skip flag is set, playback of the recording data corresponding to the header information is skipped, and a transmission end flag is set in the header information area 806 (steps S407 and S417).

  On the other hand, for the header information for which the data deletion flag is set, the recording data and the header information corresponding to the header information are deleted (steps S408 and S418).

  For the heading information in which neither the reproduction skip flag nor the data deletion flag is set, the recording data corresponding to the heading information is wirelessly transmitted to the recording apparatus 200. When the recording device 200 confirms that the recording data has been normally recorded, the control unit 7 sets a transmission end flag in the header information area 806 (or deletes the recorded data), and the next header information. Process. If the recording apparatus 200 cannot confirm that the recording data has been recorded normally, the control unit 7 wirelessly transmits the recording data again (step S409).

  The control unit 7 repeats the processing from step S405 onward until the transmission end flag is set in all the header information areas 806 in the data list (or until all recorded data is deleted) (step S410). . After the transmission of all the recording data is completed, the imaging apparatus 100 transmits a data end signal to the recording apparatus 200, and returns to the control in step S401.

  Next, a process when it is determined in step S402 that there is an imaging request will be described. In this case, the control unit 7 determines in step S411 whether or not the recording / reproducing unit 6 is performing a reproducing operation. If the playback operation is being performed, the recording / playback unit 6 stops the playback operation in step S412. In step S413, the recording / reproducing unit 6 records a new captured image together with the heading information in an empty area of the recording medium 10. After the recording of the captured image is completed, the control unit 7 returns to the control in step S402.

  Next, a process when it is determined in step S403 that the recording / reproducing unit 6 is in a recording or reproducing state will be described. In this case, in step S414, the recording / reproducing unit 6 continues the recording or reproduction state. After the recording or reproduction is completed, the control unit 7 returns to the control in step S402.

  Next, processing when it is determined in step S405 that the imaging apparatus 100 and the recording apparatus 200 are not in a communicable state will be described. In this case, in step S415, the control unit 7 determines whether there is recording data currently being wirelessly transmitted. If there is no recording data being wirelessly transmitted, the control unit 7 returns to the control of step S405. On the other hand, if there is recording data being wirelessly transmitted, in step S416, the control unit 7 stops the wireless transmission of the recording data and returns the playback pointer of the recording / playback unit 6 to the start position of the recording data.

  FIG. 5 is a flowchart for explaining the processing procedure of the recording apparatus 200 according to the first embodiment. The control unit 24 of the recording apparatus 200 controls the operation of the entire recording apparatus 200 according to the flowchart of FIG. Here, the program code for realizing the flowchart of FIG. 5 is stored in the memory 28.

  In step S501, the control unit 24 determines whether or not the automatic transmission mode is ON.

  If the automatic transmission mode is not ON, the control unit 24 executes the normal operation mode (step S419). In this case, the recording device 200 receives control from an external device (such as a personal computer or an editing device), and edits and processes the recorded image information.

  On the other hand, if the automatic transmission mode is ON, the control unit 24 reads the data list from the recording medium 27 and supplies the data list to the header information comparison unit 26 in step S502.

  Next, in step S <b> 503, the control unit 24 determines whether or not communication is possible based on a communication state signal output from the wireless communication unit 21. If it is determined that communication is possible, in step S504, the control unit 24 receives a data list wirelessly transmitted by the imaging apparatus 100 and supplies the data list to the header information comparison unit 26. In step S505, the header information comparison unit 26 compares the header information included in the data list of the imaging device 100 with the header information included in the data list of the recording device 200, and determines whether the contents match. Determine.

  If there is heading information whose contents match in the data list of the recording apparatus 200, in step S506, the control unit 24 determines whether or not a deletion request is set in advance. When the deletion request is set in advance, the control unit 24 sets a data deletion flag for the heading information of the imaging apparatus 100 (step S507). On the other hand, when the deletion request is not set in advance, the control unit 24 sets a reproduction skip flag for the heading information of the imaging apparatus 100 (step S508).

  After the processing for all the heading information included in the data list of the imaging apparatus 100 is completed, the recording apparatus 200 returns the data list of the imaging apparatus 100 in step S510. Thereafter, in step S511, the recording apparatus 200 receives recording data and header information that are sequentially wirelessly transmitted from the imaging apparatus 100, and records them on the recording medium 27. As a result, the data list of the recording apparatus 200 is updated. The recording device 200 transmits a recording confirmation signal indicating that the recording has ended normally to the imaging device 100 every time recording of each recording data ends normally.

  Eventually, the recording apparatus 200 executes the processing from step S503 onward until a data end signal is received from the imaging apparatus 100 (step S512). When the data end signal is received from the imaging apparatus 100, in step S513, the control unit 24 stops the recording operation of the recording / reproducing unit 25 and returns to the control in step S501.

  Next, processing when it is determined in step S503 that the imaging apparatus 100 and the recording apparatus 200 are not in a communicable state will be described. In this case, in step S514, the control unit 24 determines whether there is currently received recording data. If there is no recording data being received, the control unit 24 returns to the control of step S502. On the other hand, if there is recording data being received, in step S515, the control unit 24 stops recording the recording data, and returns the recording pointer of the recording / reproducing unit 25 to the start position of the recording data.

  In the first embodiment as described above, the automatic transmission mode is provided for each imaging device 100 and the recording device 200, so that the distance between the imaging device 100 and the recording device 200 is normal. When the communication state of the transmission path is good, the digital image and the sound captured and recorded in the past by the imaging apparatus 100 are automatically wirelessly transmitted to the remote recording apparatus 200. A transmission system can be applied.

  In addition, this system automatically stops data transmission when each device is not within the range where normal communication can be performed, or when the communication condition of the transmission path is not good, and after the data is restored, the data transmission is stopped. Can be resumed automatically.

  With such a configuration, it is possible to automatically store the digital image and sound of the imaging apparatus 100 in the remote recording apparatus 200 without making the user particularly conscious or requiring complicated work. it can. In addition, when the communication state is not good, data transmission is automatically stopped, so that transmission errors and omissions can be minimized, and recording and storage can be reliably performed in the remote recording device 200. .

  In the first embodiment, it is also possible to automatically skip the reproduction of digital images and sounds already recorded in the recording apparatus 200. With such a configuration, it is possible to prevent the process of reproducing and transmitting the same data twice, and data transmission can be performed efficiently.

  In the first embodiment, digital images and sounds already recorded in the recording apparatus 200 can be automatically deleted. With such a configuration, it is possible to prevent the process of reproducing and transmitting the same data twice, and data transmission can be performed efficiently. In addition, the recording medium of the imaging apparatus 100 can be used efficiently.

  Furthermore, in the first embodiment, a digital image data transmitted from the imaging apparatus 100 can be converted into a predetermined data format set in advance and recorded. With such a configuration, it is possible to reduce the work load associated with storage and management of digital image information, and it is possible to reduce the load of editing work performed after recording.

(Second Embodiment)
In the first embodiment described above, when the imaging device 100 is neither in the imaging state nor in the recording state, digital information (including images and sounds) captured and recorded in the past by the imaging device 100 itself is stored in the transmission path. The configuration for automatically wirelessly transmitting to the remote recording apparatus 200 according to the communication state has been described.

  In the second embodiment, in addition to the configuration of the first embodiment, even when the imaging apparatus 100 is in an imaging state, digital information (including images and sounds) currently being captured is transmitted. A configuration for automatically wirelessly transmitting to the remote recording apparatus 200 according to the communication state of the road will be described.

  Hereinafter, the configuration and processing operation of the image communication system according to the second embodiment will be described in detail with reference to the drawings.

  FIG. 6 is a block diagram illustrating a configuration of the imaging apparatus 500. Hereinafter, the configuration of each unit will be described. Note that the imaging apparatus 500 may be a camera-integrated digital video recorder or a digital camera, as with the imaging apparatus 100 of the first embodiment.

  In FIG. 6, the imaging unit 51, the digital image processing unit 52, the microphone 53, and the digital audio processing unit 54 are respectively the imaging unit 1, the digital image processing unit 2, the microphone 3, and the digital audio processing unit 4 described in FIG. 2. It has the same function as each.

  In addition, the heading information generation unit 55, the recording / playback unit 56, the wireless communication unit 58 (including the detection circuit 63), the recording medium 60, and the operation unit 64 are the same as the heading information generation unit 5, the recording / playback unit described in FIG. 6. The wireless communication unit 8 (including the detection circuit 12), the recording medium 10, and the operation unit 13 have the same functions.

  The control unit 57 controls the overall operation of the imaging apparatus 500. In particular, the procedure for controlling the operation of the recording / reproducing unit 56 will be described later with reference to FIG. The control unit 57 reads the program code recorded in advance in the memory 61 and controls the operation of the entire imaging apparatus 500.

  The selector 62 includes imaging data output from the imaging unit 51 (including digital image information and digital audio information during imaging) and corresponding header information, and recording data output from the recording medium 60 (digital image information and digital audio information). And the heading information corresponding thereto are selected based on the “shooting active signal” supplied from the control unit 57.

  The wireless communication unit 58 generates transmission data from the imaging data output from the selector 62 and the corresponding header information (or the recording data output from the selector 62 and the corresponding header information). After performing spread spectrum modulation, it is wirelessly transmitted to the remote recording apparatus 200 via the antenna 59. In addition, the wireless communication unit 58 wirelessly transmits the data list of the imaging device 500 as transmission data.

  Note that the imaging apparatus 500 according to the second embodiment wirelessly transmits transmission data via the antenna 59, but is not limited thereto. For example, the transmission data may be modulated into infrared light or laser light and transmitted via an infrared LED or laser diode.

  As described above, the imaging apparatus 500 according to the second embodiment is configured. Note that a recording apparatus corresponding to the imaging apparatus 500 of the second embodiment will be described using the recording apparatus 200 shown in FIG.

  Next, the operation of the imaging apparatus 500 in the second embodiment will be described in detail.

  First, the operation of the imaging apparatus 500 will be described. When the automatic transmission mode is OFF, the imaging apparatus 500 operates in the normal operation mode, as in the first embodiment.

  Next, the case where the automatic transmission mode is ON will be described. Even in this case, the imaging apparatus 500 can use the imaging mode and the reproduction mode, as in the first embodiment. However, when there is an “imaging request” and an operation such as “imaging request” is not input for a predetermined time, the imaging apparatus 500 performs the following operation.

  Whether or not the wireless communication unit 58 included in the imaging apparatus 500 and the wireless communication unit 21 included in the recording apparatus 200 are within a range in which normal communication can be performed with each other, and whether or not the communication state of the transmission path is good. Are detected at a predetermined timing, and it is determined whether or not they can communicate with each other.

  First, (6) a case where it is determined that communication is possible with each other will be described. In this case, the imaging apparatus 500 automatically performs control so that imaging data or recording data is selectively transmitted wirelessly.

  In such a case, the wireless communication unit 58 of the imaging apparatus 500 supplies a communication state signal indicating “communicable” to the control unit 57. Here, when the imaging apparatus 500 is in the imaging state, the control unit 57 supplies a photographing active signal indicating “imaging data” to the selector 62. The selector 62 selects the imaging data output from the imaging unit 51 and outputs it together with the header information.

  On the other hand, when the imaging apparatus 500 is not in the imaging state, the control unit 57 supplies a photographing active signal indicating “recording data” to the selector 62. The selector 62 selects the recording data output from the recording medium 60 and outputs it together with the header information.

  The imaging data (or recording data) supplied from the selector 62 is modulated (for example, spread spectrum modulated) by the wireless communication unit 58 and wirelessly transmitted to the recording apparatus 200 via the antenna 59.

  Next, (7) a case where it is determined that good wireless communication cannot be performed due to movement of the imaging device 500 or the recording device 200, an obstacle on the transmission path, and the like will be described. In this case, the imaging apparatus 500 automatically controls the recording data not to be transmitted wirelessly.

  In such a case, the wireless communication unit 58 of the imaging apparatus 500 supplies a communication state signal indicating “communication impossible” to the control unit 57. Here, when the imaging apparatus 500 is in the imaging state, the wireless communication unit 58 interrupts wireless transmission of the imaging data and records subsequent imaging data on the recording medium 60. Here, the imaging data recorded on the recording medium 60 relates to the imaging data immediately before the wireless transmission is interrupted. Therefore, the index number of the header information corresponding to the imaging data immediately before the interruption is set in the header information area 809 corresponding to the imaging data recorded on the recording medium 60. That is, a link can be set between imaging data before and after wireless transmission is interrupted. Thus, even when the reception state changes during imaging and continuous imaging data is separately recorded by the imaging device 500 and the recording device 200, the recording device 200 uses the above-described heading information to acquire a plurality of imaging data. It can be recorded and managed with time relevance.

  On the other hand, when the imaging apparatus 500 is not in the imaging state, the recording / reproducing unit 56 stops the reproduction of the recorded data based on the control of the control unit 57. Here, the recording data whose reproduction has been stopped is reproduced again from the beginning when communication becomes possible next time.

  Similarly, the wireless communication unit 21 of the recording apparatus 200 transmits a communication state signal indicating “communication impossible” to the control unit 24. When the imaging data of the imaging apparatus 500 has been recorded, the control unit 24 stops the recording operation of the recording / reproducing unit 25 and controls the recording / reproducing unit 25 to record the imaging data as it is. On the other hand, when the recording data of the imaging apparatus 500 has been recorded, the control unit 24 stops the recording operation of the recording / reproducing unit 25, deletes the recorded data, and records / reproducing unit 25 so that recording can be performed again from the beginning. To control.

  Next, a description will be given of (8) a case where it is determined that the communication state has been satisfactorily recovered from a failure and communication with each other is possible. In this case, the imaging apparatus 500 automatically selectively restarts wireless transmission of either imaging data or recording data.

  In such a case, the wireless communication unit 58 of the imaging apparatus 200 supplies a communication state signal indicating “communication recovery” to the control unit 57. Here, when the imaging apparatus 500 is in the imaging state, the control unit 57 supplies a photographing active signal indicating “imaging data” to the selector 62. The selector 62 selects the imaging data output from the imaging unit 51 and outputs it together with the header information. In the header information area 809, the index number of the header information corresponding to the imaging data immediately before resumption is set.

  On the other hand, when the imaging apparatus 500 is not in the imaging state, the control unit 57 supplies a photographing active signal indicating “recording data” to the selector 62. The selector 62 selects the recording data output from the recording medium 60 and outputs it together with the header information. Here, the recording / reproducing unit 56 resumes reproduction in units of data corresponding to the above-described heading information. Therefore, when the reproduction of data corresponding to certain heading information is stopped halfway, the data is reproduced from the beginning again.

  Similarly, the wireless communication unit 21 of the recording apparatus 200 supplies a communication state signal indicating “communication recovery” to the control unit 24. The recording / reproducing unit 25 resumes recording of the imaging data or the recording data based on the control of the control unit 24.

  The processes (6) to (8) described above are executed until the imaging state ends and all the recording data recorded on the recording medium 10 is recorded on the recording medium 27. After the transmission of all the recording data is completed, the imaging apparatus 100 wirelessly transmits a data end signal to the recording apparatus 200. After receiving this data end signal, the recording apparatus 200 stops the recording operation. Then, after the user starts a new image pickup, the above-described processing is automatically started again.

  FIG. 7 is a flowchart for describing the processing procedure of the imaging apparatus 500 according to the second embodiment. The control unit 57 of the imaging apparatus 500 controls the overall operation of the imaging apparatus 500 according to the flowchart of FIG. Here, program codes for realizing the flowchart of FIG. 7 are stored in the memory 61.

  In step S701, the control unit 57 determines whether or not the automatic transmission mode is set.

  If the automatic transmission mode is not ON, the control unit 57 executes the normal operation mode (step S702).

  On the other hand, when the automatic transmission mode is ON, in step S703, the control unit 57 determines whether there is an imaging request from the user. When there is an imaging request, in step S704, the control unit 57 determines whether or not the communication state signal is good, based on the communication state signal output from the wireless communication unit 58.

  If it is determined that the communication state is good, in step S705, the control unit 57 determines whether or not the recording / reproducing unit 56 is in a recording state. In the recording state, the control unit 57 outputs a recording / playback control signal, stops the recording operation of the recording / playback unit 56 (step S706), and performs the process of step S707. In step S707, the control unit 57 sets the shooting active signal to “shooting mode”. The selector 62 selects digital image information, digital audio information and heading information corresponding to the currently captured digital image information and supplies them to the wireless communication unit 21. The wireless communication unit 21 wirelessly transmits transmission data composed of them.

  Next, a case where it is determined in step S704 that the communication state is not good will be described. In this case, in step S708, the control unit 57 outputs a recording / playback control signal, starts the recording operation of the recording / playback unit 56, and returns to the control in step S703.

  Next, a case where it is determined in step S703 that there is no imaging request will be described. In this case, in step S709, the control unit 7 determines whether or not there is no operation input from the user for a predetermined time.

  When there is no operation input from the user for a predetermined time, in step S710, the control unit 57 determines whether or not communication is possible based on a communication state signal output from the wireless communication unit 58. If it is determined that communication is possible, the control unit 57 wirelessly transmits the data list recorded on the recording medium 60 to the recording device 200 in step S711. Here, the header information in which the transmission end flag is already set is not transmitted. The recording apparatus 200 compares this data list with a data list managed by the recording apparatus 200. If there is heading information whose contents match, a reproduction skip flag or a data deletion flag is set in the heading information. After the processing for all the found information in the data list is completed, the recording apparatus 200 returns this data list to the imaging apparatus 500.

  Based on the data list returned from the recording apparatus 200, the imaging apparatus 500 determines whether or not the recording data corresponding to each heading information is sequentially wirelessly transmitted. For the header information for which the playback skip flag is set, playback of the recording data corresponding to the header information is skipped, and a transmission end flag is set in the header information area 806 (steps S712 and S713).

  On the other hand, for the header information for which the data deletion flag is set, the recording data and the header information corresponding to the header information are deleted (steps S714 and S715).

  For the heading information in which neither the reproduction skip flag nor the data deletion flag is set, the recording data corresponding to the heading information is wirelessly transmitted to the recording apparatus 200 in step S716. When the recording device 200 confirms that the recording data has been normally recorded, the control unit 57 sets a transmission end flag in the header information area 806 (or deletes the recorded data), and the next header information. Process. If the recording device 200 cannot confirm that the recording data has been normally recorded, the control unit 57 wirelessly transmits the recording data again.

  The control unit 7 repeats the processing from step S710 onward until the transmission end flag is set in all the header information areas 806 in the data list (or until all recorded data is deleted) (step S717). . After the transmission of all the recording data is completed, the imaging apparatus 500 transmits a data end signal to the recording apparatus 200, and returns to the control in step S701.

  Next, processing when it is determined in step S710 that the imaging apparatus 500 and the recording apparatus 200 are not in a communicable state will be described. In this case, in step 718, the control unit 57 determines whether there is recording data currently being wirelessly transmitted. If there is no recording data being wirelessly transmitted, the control unit 57 returns to the control in step S710. On the other hand, if there is recording data being wirelessly transmitted, in step S719, the control unit 57 stops the wireless transmission of the recording data and returns the playback pointer of the recording / playback unit 56 to the start position of the recording data.

  An example of a flowchart showing the operation procedure of the recording apparatus 200 of the second embodiment is the same as the flowchart shown in FIG.

  As described above, in the second embodiment, by providing the automatic transmission mode for each imaging device 500 and the recording device 200, communication between the imaging device 500 and the recording device 200 can be performed normally. When the communication state of the transmission path is good and within the range that can be performed, the digital image and sound being imaged by the imaging device 500 or the digital image and sound that the imaging device 500 has captured in the past are A system for automatically transmitting wirelessly to the recording apparatus 200 can be provided.

  In addition, this system automatically stops data transmission when each device is not within the range where normal communication can be performed, or when the communication condition of the transmission path is not good, and after the data is restored, the data transmission is stopped. Can be resumed automatically. In this case, even if the digital images being imaged are recorded separately by the imaging device 500 and the recording device 200, they can be automatically associated and managed by the header information.

  With such a configuration, the digital image and the sound of the imaging apparatus 500 can be recorded at a remote place, as in the first embodiment, without causing the user to be particularly conscious or requiring complicated work. It can be automatically transmitted to the device 200 and stored. In addition, when the communication state is not good, data transmission is automatically stopped, so that transmission errors and omissions can be minimized, and recording and storage can be reliably performed in the remote recording device 200. .

  In the second embodiment, similarly to the first embodiment, the reproduction of digital image information and digital audio information already recorded in the recording apparatus 200 can be automatically skipped or deleted. With such a configuration, it is possible to prevent the process of reproducing and transmitting the same data twice, and data transmission can be performed efficiently. Further, when deleting automatically, the recording medium of the imaging apparatus 500 can be used efficiently.

  In the second embodiment, similarly to the first embodiment, digital image information transmitted from the imaging apparatus 500 can be converted into a predetermined data format and recorded. With such a configuration, it is possible to reduce the work load associated with storage and management of digital image information, and it is possible to reduce the load of editing work performed after recording.

  Furthermore, the recording apparatus 200 according to the second embodiment can record a digital image automatically transferred from the imaging apparatus 500 in association with a digital image recorded in the past as necessary. As a result, it is possible to reduce the work load associated with storage and management of the digital image recorded on the recording medium, and it is possible to reduce the load of editing work performed after recording.

(Other embodiments)
Software program for realizing the functions of the above-described embodiment for an apparatus or a computer in the system connected to the various devices so as to operate the various devices to realize the functions of the above-described embodiments. What was implemented by supplying the code and operating the various devices in accordance with a program stored in a computer (CPU or MPU) of the system or apparatus is also included in the scope of the present invention.

  In this case, the program code of the software itself realizes the functions of the above-described embodiments, and the program code itself and means for supplying the program code to the computer, for example, the program code are stored. The recorded medium constitutes the present invention. As a recording medium for storing the program code, for example, a floppy disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

  Further, by executing the program code supplied by the computer, not only the functions of the above-described embodiments are realized, but also the OS (Operating System) or other application software in which the program code is running on the computer. Needless to say, the program code is also included in the embodiment of the present invention even when the functions of the above-described embodiment are realized in cooperation with the above.

  Further, after the supplied program code is stored in the memory provided in the function expansion board of the computer or the function expansion unit connected to the computer, the CPU provided in the function expansion board or function expansion unit based on the instruction of the program code Needless to say, the present invention includes the case where the functions of the above-described embodiments are realized by performing part or all of the actual processing.

  It should be noted that the shapes and structures of the respective parts shown in the above embodiments are merely examples of implementation in carrying out the present invention, and these limit the technical scope of the present invention. It should not be interpreted. That is, the present invention can be implemented in various forms without departing from the spirit or main features thereof.

100, 500 Imaging device 1, 51 Imaging unit 2, 52 Digital image processing unit 3, 53 Microphone 4, 54 Digital audio processing unit 5, 55 Headline information generation unit 6, 56 Recording / playback unit 7, 57 Control unit 8, 58 Wireless Communication unit 9, 59 Antenna 10, 60 Recording medium 11, 61 Memory 12, 63 Detection circuit 13, 64 Operation unit 62 Selector 200 Recording device 21 Wireless communication unit 22 Recording information detection unit 23 Recording processing unit 24 Control unit 25 Recording / reproduction Unit 26 heading information comparison unit 27 recording medium 28 memory 29 operation unit

Claims (25)

Communication means for receiving image data recorded in the external recording device from an external recording device;
Recording means for recording image data received by the communication means on a recording medium;
Generating means for generating a list of image data recorded on the recording medium;
Control means,
The communication means receives a list of image data recorded in the external recording device from the external recording device;
The control unit is configured to store image data recorded on the recording medium among image data recorded on the external recording device based on the list received by the communication unit and the list generated by the generation unit. Information for deleting from the external recording device is generated, and the generated information is transmitted to the external recording device by the communication means.   The control unit is configured to store image data recorded on the recording medium among image data recorded on the external recording device based on the list received by the communication unit and the list generated by the generation unit. The communication apparatus according to claim 1, wherein the communication apparatus determines and transmits information including a file name of image data recorded on the recording medium to the external recording apparatus.   The communication unit receives a list of image data recorded in the external recording device from the external recording device in response to being able to communicate with the external recording device. The communication apparatus according to claim 1 or 2. Communication means for receiving audio data recorded in the external recording device from an external recording device;
Recording means for recording the audio data received by the communication means on a recording medium;
Generating means for generating a list of audio data recorded in the recording medium;
Control means,
The communication means receives a list of audio data recorded in the external recording device from the external recording device;
The control means, based on the list received by the communication means and the list generated by the generation means, out of the audio data recorded on the external recording device, the audio data recorded on the recording medium Information for deleting from the external recording device is generated, and the generated information is transmitted to the external recording device by the communication means.   The control means, based on the list received by the communication means and the list generated by the generation means, out of the audio data recorded on the external recording device, the audio data recorded on the recording medium 5. The communication apparatus according to claim 4, wherein the communication apparatus determines and transmits information including a file name of audio data recorded on the recording medium to the external recording apparatus.   The communication means receives a list of audio data recorded in the external recording device from the external recording device in response to being able to communicate with the external recording device. The communication apparatus according to claim 4 or 5.   The communication apparatus according to claim 1, wherein the communication unit communicates with the external recording apparatus by wireless communication. Communication means for receiving image data recorded in the external recording device from an external recording device;
A control method of a communication device comprising: recording means for recording image data received by the communication means on a recording medium,
Generating a list of image data recorded on the recording medium;
A list of image data recorded in the external recording device is received from the external recording device by the communication means;
Based on the list received by the communication means and the generated list, the image data recorded on the recording medium among the image data recorded on the external recording device is deleted from the external recording device. For generating a communication information, and causing the communication means to transmit the generated information to the external recording device.   Based on the list received by the communication means and the generated list, the image data recorded on the recording medium among the image data recorded on the external recording device is discriminated and recorded on the recording medium. 9. The method of controlling a communication apparatus according to claim 8, wherein information including a file name of the image data being transmitted is transmitted to the external recording apparatus.   A list relating to image data recorded in the external recording device is received from the external recording device by the communication means in response to being able to communicate with the external recording device. The method for controlling a communication device according to claim 8 or 9. Communication means for receiving audio data recorded in the external recording device from an external recording device;
A control method of a communication device comprising: recording means for recording audio data received by the communication means on a recording medium,
Generating a list of audio data recorded on the recording medium;
A list of audio data recorded in the external recording device is received from the external recording device by the communication means;
Based on the list received by the communication means and the generated list, the audio data recorded on the recording medium among the audio data recorded on the external recording device is deleted from the external recording device. For generating a communication information, and causing the communication means to transmit the generated information to the external recording device.   Based on the list received by the communication means and the generated list, the audio data recorded on the recording medium among the audio data recorded on the external recording device is discriminated and recorded on the recording medium. 12. The communication apparatus control method according to claim 11, wherein information including a file name of the audio data being transmitted is transmitted to the external recording apparatus by the communication means.   A list relating to audio data recorded in the external recording device is received from the external recording device by the communication unit in response to being able to communicate with the external recording device. Item 13. A communication device control method according to Item 11 or 12. Communication means for receiving image data recorded in the external recording device from an external recording device;
Recording means for recording image data received by the communication means on a recording medium;
A storage medium storing a program for causing a computer to function as generation means for generating a list of image data recorded in the recording medium,
The communication means receives a list of image data recorded in the external recording device from the external recording device;
Based on the list received by the communication unit and the list generated by the generation unit, image data recorded on the recording medium among the image data recorded on the external recording device is stored in the external recording device. A computer-readable storage medium storing a program for causing a computer to function so as to generate information to be deleted from the computer and to transmit the generated information to the external recording device by the communication unit.   Based on the list received by the communication unit and the list generated by the generation unit, the image data recorded on the recording medium among the image data recorded on the external recording device is determined, 15. The computer-readable storage medium according to claim 14, wherein a program for causing a computer to function so as to transmit information including a file name of image data recorded on the recording medium to the external recording device is stored.   A computer configured to receive a list of image data recorded in the external recording device from the external recording device in response to the communication means being able to communicate with the external recording device; The computer-readable storage medium according to claim 14 or 15, which stores a program for causing it to function. Communication means for receiving audio data recorded in the external recording device from an external recording device;
Recording means for recording the audio data received by the communication means on a recording medium;
A storage medium storing a program for causing a computer to function as a generation unit that generates a list of audio data recorded in the recording medium,
The communication means receives a list of audio data recorded in the external recording device from the external recording device;
Based on the list received by the communication unit and the list generated by the generating unit, the audio data recorded on the recording medium among the audio data recorded on the external recording device is stored in the external recording device. A computer-readable storage medium storing a program for causing a computer to function so as to generate information to be deleted from the computer and to transmit the generated information to the external recording device by the communication unit.   Based on the list received by the communication unit and the list generated by the generation unit, the audio data recorded on the recording medium among the audio data recorded on the external recording device is determined, 18. The computer-readable storage medium according to claim 17, wherein a program for causing a computer to function is stored so as to transmit information including a file name of audio data recorded on the recording medium to the external recording device.   A computer configured to receive, from the external recording device, a list of audio data recorded in the external recording device in response to the communication means being able to communicate with the external recording device; The computer-readable storage medium according to claim 17 or 18, which stores a program for causing it to function. Recording and reproducing means for recording image data on a recording medium and reproducing the image data from the recording medium;
Generating means for generating a list of image data recorded on the recording medium;
Communication means for communicating with an external recording device and transmitting image data reproduced from the recording medium to the external recording device;
Control means for transmitting the list generated by the generating means to the external recording device by the communication means,
The communication unit generates image data recorded on the external recording device among image data recorded on the recording medium generated by the external recording device according to the list transmitted by the communication unit. Information for deleting from the recording medium is received from the external recording device,
The control unit deletes, from the recording medium, image data recorded on the external recording device among image data recorded on the recording medium, based on the information received by the communication unit. A communication device. Recording and reproducing means for recording audio data on a recording medium and reproducing the audio data from the recording medium;
Generating means for generating a list of audio data recorded in the recording medium;
Communication means for communicating with an external recording device and transmitting audio data reproduced from the recording medium to the external recording device;
Control means for transmitting the list generated by the generating means to the external recording device by the communication means,
The communication means generates audio data recorded on the external recording device among audio data recorded on the recording medium generated by the external recording device according to the list transmitted by the communication means. Information for deleting from the recording medium is received from the external recording device,
The control means deletes audio data recorded on the external recording device from the recording medium out of the audio data recorded on the recording medium, based on the information received by the communication means. A communication device. Recording and reproducing means for recording image data on a recording medium and reproducing the image data from the recording medium;
A communication device control method comprising communication means for communicating with an external recording device and transmitting image data reproduced from the recording medium to the external recording device,
Generating a list of image data recorded on the recording medium;
Sending the generated list to the external recording device by the communication means;
Of the image data recorded on the recording medium generated by the external recording device according to the list transmitted by the communication means, the image data recorded on the external recording device is deleted from the recording medium. Information to be received from the external recording device by the communication means,
A communication device, wherein image data recorded in the external recording device among image data recorded in the recording medium is deleted from the recording medium based on the information received by the communication means. Control method. Recording and reproducing means for recording audio data on a recording medium and reproducing the audio data from the recording medium;
A communication device control method comprising communication means for communicating with an external recording device and transmitting audio data reproduced from the recording medium to the external recording device,
Generating a list of audio data recorded on the recording medium;
Sending the generated list to the external recording device by the communication means;
Of the audio data recorded on the recording medium generated by the external recording device according to the list transmitted by the communication means, the audio data recorded on the external recording device is deleted from the recording medium. Information to be received from the external recording device by the communication means,
A communication device, wherein audio data recorded in the external recording device is deleted from the recording medium out of audio data recorded in the recording medium based on the information received by the communication means. Control method. Recording and reproducing means for recording image data on a recording medium and reproducing the image data from the recording medium;
Generating means for generating a list of image data recorded on the recording medium;
Communication means for communicating with an external recording device and transmitting image data reproduced from the recording medium to the external recording device;
A storage medium storing a program for causing a computer to function as a control unit that causes the communication unit to transmit the list generated by the generation unit to the external recording device,
Image data recorded on the external recording device among the image data recorded on the recording medium, which is generated by the external recording device according to the list transmitted by the communication means. Information for deleting from the recording medium is received from the external recording device,
Based on the information received by the communication unit, the control unit deletes the image data recorded on the external recording device from the recording medium out of the image data recorded on the recording medium. A computer-readable storage medium storing a program for causing a computer to function. Recording and reproducing means for recording audio data on a recording medium and reproducing the audio data from the recording medium;
Generating means for generating a list of audio data recorded in the recording medium;
Communication means for communicating with an external recording device and transmitting audio data reproduced from the recording medium to the external recording device;
A storage medium storing a program for causing a computer to function as a control unit that causes the communication unit to transmit the list generated by the generation unit to the external recording device,
Audio data recorded on the external recording device among audio data recorded on the recording medium, which is generated by the external recording device according to the list transmitted by the communication means. Information for deleting from the recording medium is received from the external recording device,
Based on the information received by the communication unit, the control unit deletes the audio data recorded on the external recording device from the recording medium out of the audio data recorded on the recording medium, A computer-readable storage medium storing a program for causing a computer to function.

Images