JP2007013779A - Signal processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dub information data recorded in a recording medium by a simple operation. <P>SOLUTION: The apparatus recording the information data received from a reproducing apparatus capable of reproducing the information data recorded in a first recording medium and a second recording medium via a transmission path in a third recording medium, is provided with: a control means for controlling the device so that the first information data recorded in the first recording medium and the second information data recorded in the second recording medium are reproduced from the first recording medium and the second recording medium, respectively and transmitted via the transmission path according to an instruction of start of dubbing; and a recording means for recording the information data reproduced from the first recording medium and the second recording medium, respectively by the reproducing apparatus in accordance with the instruction of start of dubbing and transmitted via the transmission path in the third recording medium. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a signal processing apparatus, and more particularly to an apparatus for receiving information data reproduced and transmitted from a recording medium by an external reproducing apparatus and recording the information data on another recording medium.

  2. Description of the Related Art Conventionally, an apparatus for recording and reproducing captured image data as digital data on a memory card or a magnetic tape, such as a digital camera or a video camera, is known. In recent years, disk video cameras that record and reproduce image data taken on an optical disk such as a DVD have also appeared. In addition, video cameras that have a memory card slot and can record and reproduce image data on a memory card in addition to an optical disk have also appeared.

  Since optical discs and memory cards used in such disc video cameras are relatively expensive, it is conceivable to copy the recorded image data to a large-capacity recording medium and then erase the disc data for repeated use. .

  Specifically, a method is conceivable in which image data recorded on an optical disk or a memory card is transmitted to a personal computer (PC) and stored in a large-capacity hard disk drive (HDD) or optical disk built in or attached to the PC. (For example, refer to Patent Document 1).

In this case, the user connects the PC to a digital camera or video camera via a high-speed serial interface such as USB or IEEE 1394, and transfers the data recorded on the memory card or optical disk to a large-capacity recording device built in or attached to the PC. And save. At that time, the user generally designates and executes transfer from the source recording medium to the large-capacity recording apparatus by an application on the PC.
JP 2002-082777 A

  As described above, in order to transfer and record data recorded on a disc mounted on a video camera to a large-capacity recording medium of a PC, the user must operate a data storage application on the PC side.

  The operation of such a PC application is complicated, and control is troublesome for a user who rarely uses the PC.

  In other words, the user is desired to transfer and store the data recorded on the attached recording medium only by controlling the video camera to the large-capacity recording apparatus without controlling the PC.

  Further, in a video camera capable of recording / reproducing image data on / from a memory card in addition to an optical disk, it may be considered that still image data related to moving image data recorded on the disk is recorded on the memory card.

  However, if the moving image data recorded on the optical disk is dubbed after being transmitted to the PC, and the still image data recorded on the memory card is used for dubbing, the user must store the data in the memory card separately from the dubbing operation of the optical disk. It was necessary to select still image data to be dubbed and send it to a PC, which was very inconvenient.

  An object of the present invention is to solve such problems and to provide an apparatus capable of dubbing information data recorded on a recording medium to another recording medium with a simple operation.

  The signal processing apparatus of the present invention records information data received via a transmission path from a reproducing apparatus capable of reproducing information data recorded on the first recording medium and the second recording medium on a third recording medium. In accordance with an instruction to start dubbing, the apparatus records the first information data recorded on the first recording medium and the second information data recorded on the second recording medium, respectively. Control means for controlling the recording apparatus to reproduce from the first recording medium and the second recording medium and transmit via the transmission path, and the first recording by the reproducing apparatus in accordance with the dubbing start instruction And recording means for recording information data reproduced from the medium and the second recording medium and transmitted via the transmission path on the third recording medium.

  According to the present invention, information data recorded on a plurality of recording media can be dubbed to a single recording medium with a simple operation.

  Hereinafter, embodiments according to the present invention will be described in detail.

  FIG. 1 is a configuration example of a data transmission system according to the present embodiment.

  The system of FIG. 1 is for a video camera 101 that records and reproduces image data taken on an optical disk 102 such as a DVD-RAM (8 cm) and a large-capacity optical disk 107 such as a large-capacity DVD-RAM (5 inches). And a PC 105 having a recording / reproducing drive 106 for recording / reproducing data.

  Each of the video camera 101 and the PC 105 includes a USB interface, and data transmission is realized by connecting a USB cable 104 to these USB interfaces. In this embodiment, a case where mass storage is used as the USB transmission protocol will be described. In the present embodiment, data recorded on the optical disk 102 can be transferred to the PC 105 and recorded on the large-capacity optical disk 107.

  FIG. 2 is a block diagram showing a main configuration of the video camera 101. As shown in FIG.

  The imaging unit 201 captures a subject, generates moving image data, and outputs the moving image data to the bus 213. The signal processing unit 202 encodes the moving image data output from the imaging unit 201 at the time of recording by a well-known encoding method, outputs the encoded data to the recording / playback control unit 212, and at the time of playback, the moving image reproduced from the disk D1 The image data is decoded and output to the display control unit 210. The CPU 203 is connected to each component via the bus 214, and issues a control instruction for each component by software operating on the main control unit 203. The communication control unit 204 performs communication control in accordance with the mass storage standard when connected to an external device, that is, the PC 105 and the USB device connector 205 in FIG. An internal memory 206 stores various software used by the main control unit 203, various information transmitted from the PC 105, and the like.

  The input operation control unit 207 determines key information when the user inputs to the operation unit 208 and notifies the software operating on the main control unit 203. In addition, the operation unit 208 includes a button 209 in a form in which a lightable LED is embedded. When the video camera 101 is connected to the PC 102 with the USB cable 104, this button 209 has a function for the user to instruct the start of dubbing, and is the state in which the dubbing by the PC 102 is possible depending on the lighting state of the LED. It has a function to inform the user whether or not.

  The display control unit 210 generates a video to be displayed on the display unit 211 and controls the display. The disc I / F 212 controls the optical disc 102 to record and reproduce captured data, and transfer the read data to the internal memory 206. The memory card I / F 213 controls writing and reading of image data taken with respect to the memory card 103. The read data is transmitted to the outside via the communication control unit 204 or transferred to the display unit via the display control unit 211.

  A block diagram of the main part of the PC 105 is shown in FIG.

  As shown in the figure, the PC 105 buffers a main control unit (configured by a CPU) 301 that controls the entire apparatus, an operating system (OS) and various applications, and writes data to the optical disc D2. An internal memory 302 used as an area, an OS, and a hard disk drive (HDD) 303 that stores various application programs including applications for controlling the recording / playback drive 103 used in the present embodiment, a pointing device such as a mouse, and a keyboard An input operation control unit 304 that receives an input from the input device 305 and outputs to the main control unit 301, a communication control unit 306 that transmits and receives data via the USB host connector 307, a CRT, a liquid crystal display, and the like Display unit 309 And outputs a video signal of, a data bus 310 for transmitting and receiving data between the display control section 308, the functional blocks to be drawn into the interior of the video memory in response to a request from the main control unit 301.

  The configuration of the video camera 101 and the PC 105 in the embodiment has been described above. Next, processing in the embodiment will be described.

  The application program stored in the HDD 303 in this embodiment includes the following two program modules A and B. Each program performs the following functions.

Module A: a program for performing status communication with the video camera Module B: a program for receiving image data transmitted from the video camera and performing a writing process (dubbing process) on the optical disc D2 The function of determining whether the video camera 101 and the PC 105 are connected by the USB cable 104 and the writable optical disc 107 is attached to the recording / reproducing drive 106 by the module, and the optical disc automatically attached to the video camera 101 A dubbing function is realized in which all data files stored in 102 and still image data recorded in the memory card 103 are transmitted to the PC 105 and written to the optical disc 107.

  Note that the model name of the video camera is known to the application of the embodiment. The USB interface is an interface originally formulated as hot plug and play. When the video camera 101 is connected to the USB host connector 307 via the USB cable 104, mass storage communication is established. This communication establishment procedure is known.

  At this time, the OS recognizes the connected device, and also acquires the device name.

  First, the processing of module A will be described. FIG. 5 is a flowchart showing the processing procedure of module A among the application programs stored in the HDD 303 of the PC 105.

  First, in step S501, it is determined whether or not the connected USB device is a known video camera 101. If not, the process is terminated.

  If it is determined that the video camera 101 is connected, the process proceeds to step S502, where it is determined whether or not the recording / reproducing drive 106 is connected. In S503, it is determined whether or not the writable optical disk 107 is loaded in the recording / reproducing drive 106.

  If it is determined that the recordable optical disk 107 is loaded, in step S504, the status of whether any button of the operation unit 208 of the video camera 101 is pressed is periodically checked via the communication control unit 306. Poll. Then, the response data is checked, and when the dubbing button 209 of the operation unit 208 is operated, the process proceeds to step S505, and the module B that controls the dubbing process is activated.

  FIG. 6 is a flowchart showing the processing procedure of module B.

  In step S601, using the mass storage class protocol, all image data recorded on the optical disc 102 mounted on the video camera 101 is read and written to the optical disc 107. At this time, the attributes of all the image data recorded on the optical disc 102, for example, the recording date and time of the image data are recorded in the internal memory 302.

  Thereafter, the process proceeds to step S602, where a command is transmitted via the communication control unit 306, and an inquiry is made as to whether or not the memory card 103 is attached to the video camera 101. The CPU 203 of the video camera 101 controls the card I / F 213 to determine whether or not the memory card 103 is attached to the video camera 101, and returns a response data for the command data.

  Module B checks the response data to determine whether or not the memory card 103 is attached to the video camera 101. If the memory card 103 is not attached, the process proceeds to step S604, and if it is attached, the process proceeds to step S603 to continue the dubbing process.

  Here, a file structure of image data in the memory card 102 will be described with reference to FIG. An image file is recorded in the memory card 210 in the format shown in FIG. In FIG. 4, first, a DCIM directory, which is a DCF image root directory, is created immediately below the root directory. A plurality of directories are created under the DCIM directory. The directory name is composed of 8 characters, the first 3 characters represent the directory number, the numbers from “100” to “999”, and the next 5 characters are free characters and are arbitrary character strings. In FIG. 4, the directory names are assumed to be “100 CANOC” and “101 CANOC”. Image data (JPEG data in FIG. 4) is stored under each directory.

  In step S603, the attribute information of the image data in the memory card 102, for example, the recording date and time of the image data is checked according to the mass storage class. In step S601, the recording date / time of each image data recorded in the internal memory 302 when the image data of the optical disk 102 is read is compared with the recording date / time of the image data recorded in the memory card 103, and the memory Of the image data in the card 102, an image data file recorded within the recording date / time range of the image data in the optical disc 102 is searched.

  If the retrieved image data files exist in the memory card 103, all the image data files are read using the mass storage class protocol and written to the optical disc 107.

  Here, when the still image file (JPEG data) is written to the optical disc 107, it is written while maintaining the directory structure of FIG. In step S604, it is determined whether or not the dubbing destination disc 107 is a DVD-R disc. If the disc 107 is a DVD-R disc, finalization processing is executed in step S605. If the disc is not a DVD-R, such as a DVD-RAM or a DVD-RW disc, the processing ends.

  As described above, according to the above-described embodiment, in an imaging apparatus including a plurality of recording media such as an optical disc and a memory card, the recording medium of the connection destination PC has the data file recorded on one of the recording media. When dubbing, the data file recorded on the other recording medium related to the data file is also dubbed at the same time, so that the free capacity of the dubbing destination recording medium can be used effectively.

  In the process of module B in FIG. 6, when dubbing image data recorded on the memory card 103 to the disk 107, it is determined whether or not the dubbing destination disk is a DVD-R. In this case, the still image file can be converted into the MPEG-2 format and written to the optical disc 107 so that the still image dubbed by a general DVD video player can be reproduced.

It is a figure which shows the recording / reproducing system as embodiment of this invention. It is a block diagram of the video camera in an embodiment. It is a block diagram of PC in embodiment. It is the figure which showed the file structure in the memory card in embodiment. It is a flowchart which shows the process of the program module in embodiment. It is a flowchart which shows the process of the program module in embodiment.

Claims (9)

An apparatus for recording information data received via a transmission path from a reproducing apparatus capable of reproducing information data recorded on a first recording medium and a second recording medium on a third recording medium,
In response to the instruction to start dubbing, the first information data recorded on the first recording medium and the second information data recorded on the second recording medium are respectively stored in the first recording medium. And control means for controlling the recording apparatus to reproduce from the second recording medium and transmit via the transmission path;
Recording for recording information data reproduced from the first recording medium and the second recording medium by the reproducing apparatus in accordance with the instruction to start dubbing and transmitted via the transmission path to the third recording medium And a signal processing apparatus.   The reproduction device selects the information data related to the first information data from the second information data, and reproduces and transmits the selected information data from the second recording medium. The signal processing apparatus according to claim 1, wherein:   The control means selects information data related to the first information data from the second information data based on the additional information of the first information data, and the selected information data is recorded in the second recording data. 3. The signal processing apparatus according to claim 2, wherein the reproduction apparatus is controlled to reproduce and transmit from a medium.   The control means controls the reproducing apparatus to reproduce and transmit all the first information data recorded on the first recording medium in response to the dubbing start instruction, and 4. The signal processing apparatus according to claim 3, wherein the reproducing apparatus is controlled so as to reproduce and transmit only the selected information data among the second information data recorded on a recording medium.   The control means is configured to obtain information data related to the first information data out of the second information data based on the recording date information of the first information data and the recording date information of the second information data. 4. The signal processing apparatus according to claim 3, wherein the signal processing apparatus is selected.   The first information data is moving image data, the second information data is still image data, the still image data is stored and recorded in a directory, and the recording means includes the second information data. 2. The signal processing apparatus according to claim 1, wherein still image data reproduced from the recording medium is recorded on the third recording medium while maintaining a directory structure in the second recording medium.   The control means further controls the recording means to generate moving image data from still image data reproduced from the second recording medium and record it on the third recording medium. 6. The signal processing device according to 6.   A communication unit configured to transmit and receive data to and from the playback device via the transmission path, and the control unit receives a dubbing start command transmitted from the playback device via the communication unit; 2. The signal processing apparatus according to claim 1, wherein a control command for reproducing and transmitting the information data to the reproducing apparatus is transmitted via the communication unit.   The control means further controls the recording means to execute a finalizing process on the third recording medium after the dubbing process of the information data on the third recording medium is completed. The signal processing apparatus as described.

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