JP2004274718A - Display, reproducing apparatus, and interface used for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display, a reproducing apparatus, and an interface used for the same. <P>SOLUTION: A control means is provided which controls turning on/off of the decoding of a BML decoder and the synthesis/selection of an image and sound outputted from the BML decoder. The control is performed in a television receiver 1 and a DVD recorder/player 301 according to a transmission format of BML data for data broadcasting. Thus, in a connection configuration between the television receiver 1 and the DVD recorder/player 301, it is possible to solve the inoperativeness of a remote controller 34 of the television receiver when the data broadcasting of a recorded program is reproduced. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention provides a display device having a display function, such as a television broadcast receiver, a personal computer, a mobile phone, or a personal digital assistant, and a program that is recorded on a recording medium such as a DVD player, a CD player, or an HDD player. The present invention relates to a reproducing apparatus for outputting a program, a reproducing apparatus for recording and reproducing and outputting a program or the like on a recording medium such as a DVD recorder, a CD recorder, and an HDD recorder, and an interface device used for the apparatus.

  2. Description of the Related Art In recent years, with the start of digital television broadcasting, transmission and recording of broadcast programs in a digital format have been started (for example, see Patent Document 1). In addition, technology development for speeding up and wireless communication of an interface for connecting a display device and a playback device is progressing.

  Hereinafter, conventional display devices and playback devices and devices used for them will be described.

  FIG. 24 and FIG. 27 show the configuration of a conventional display device and playback device and a device used for them. In FIG. 24, reference numeral 401 denotes a television receiver which is a conventional display device. 438 is an antenna for receiving digital television broadcasts. Reference numeral 405 denotes a receiving unit D, which includes a tuner unit. The receiving unit D405 selects a digital television broadcast received by the antenna 438 and modulates a transport stream (hereinafter abbreviated as TS) such as MPEG-2 in which a video signal and an audio signal are multiplexed. Output signal. The video signal and the audio signal are subjected to compression according to the MPEG-2 standard and then subjected to data conversion. Further, at the time of transmission by digital television broadcasting or recording on a recording device, the data is stored in a packet of a predetermined size and stream-converted from a multiplexed packet group. In MPEG-2, as a stream format, a transport stream (TS) for transmission and a program stream (PS) for recording are standardized. A packet forming the TS is called a TS packet, and a packet forming the PS is called a PS packet. The TS can also be used for recording. Here, the signal of the compressed format is a signal of the MPEG-2 TS or the MPEG-2 PS format, and the signal of the uncompressed format is an uncompressed baseband video signal or audio signal. . Reference numeral 406 denotes a demodulation unit D, which demodulates a signal output from the reception unit D405 by a demodulation method conforming to a broadcast standard, and outputs a TS. A TS decoder 407 selects and outputs a digital television broadcast program received by the antenna 438. When connected to the television receiver 401 and recorded on a DVD recorder / player 501 (to be described later) which is not shown, the TS decoder 407 inputs a TS from the demodulation unit D406, performs packet filtering, and relates to a program to be recorded. It outputs a TS in which data of video, audio, data broadcast and program guide is stored.

  On the other hand, when the digital television broadcast program received by the antenna 438 is displayed, the TS decoder 407 receives the TS from the demodulation unit D406 and stores it in packet filtering or a packet under the control of the microcomputer 416 described later. It extracts data and outputs elementary streams of video and audio, BML data of data broadcasting, and data of a program guide. If the input TS is scrambled for a pay broadcast program or the like, the TS decoder 407 extracts key information for generating a key for descrambling from the scrambled TS, and outputs the key information to the IC card unit. Output to 450. The IC card unit 450 acquires a descrambling key from the inserted IC card based on the input key information, and outputs it to the descrambling unit 451. The IC card can be inserted and removed, and the state of insertion and removal of the IC card can be output to the microcomputer 416. The descrambling unit 451 performs a process of inputting a key from the IC card 450, inputting a scrambled TS input from the TS decoder 407, descrambling using the key, and then returning to the TS decoder 407. Reference numeral 408 denotes an AV decoder, which inputs a video or audio elementary stream output from the TS decoder 407, performs a decoding process in accordance with a broadcast standard such as MPEG-2, and outputs a video signal and an audio signal. The AV output coder 408 also performs a scaling process on a video at a reduction ratio or an enlargement ratio specified by a definition file of a data broadcast, a process of generating a sound effect, and a process of synthesizing a sound when a data broadcast is displayed. The output video signal is an analog YUV signal, and the audio signal is an analog LR signal. A remote control 434 is a user interface of the television receiver 1. A reproduction key 442 is pressed when the user wants to reproduce a program on a connected DVD recorder / player (not shown). A stop key 441 is pressed when the user of the DVD recorder / player wants to stop recording or reproducing a program. A program information display key 443 is pressed when the user wants to display information related to the program being reproduced or being received. A return key 444 is a key pressed when the user wants to return to the state before the operation. Reference numeral 447 denotes a d key which is pressed when the user wants to display a data broadcast transmitted by digital broadcasting. Although not shown, a cross key for operating the data broadcast screen is provided. Reference numeral 453 denotes an input switch key which is pressed when a user wants to switch a program viewed by a user to a program received from a broadcast or a program reproduced by a connected DVD recorder / player (not shown). A light receiving unit 439 receives an infrared signal from the remote controller 434, converts the infrared signal into an electric signal, and outputs the electric signal to a microcomputer 416 described later. A microcomputer 416 controls each element of the television receiver 401. Further, the microcomputer 416 inputs BML data and program guide data of the data broadcast input from the receiving unit D405 via the TS decoder 407, interprets the contents thereof, and constructs a data broadcast screen using the buffer memory 417. To draw. Further, the microcomputer 416 performs drawing of a program table and program-related information. The microcomputer 416 also performs control to update the points and rights obtained by the user in the data broadcast game or quiz program included in the unique information for each broadcaster in the NVRAM 452. Further, the control is performed so that the user can use the broadcaster-specific information stored in the NVRAM 452 at the next reception. These operations are performed according to a program stored in a memory (not shown). It should be noted that the broadcaster-only area in the NVRAM 452 is secured as an area that can be occupied by each broadcaster. The points and rights obtained when the broadcaster receives and views the broadcasted program are written into the corresponding broadcaster-specific area under the control of the microcomputer 416. An image switch 409 receives an analog image output from a DVD recorder / player 501 (not shown) and an analog image signal output from the AV decoder 408, and switches and outputs the signal under the control of the microcomputer 416. An audio switch 412 receives an analog audio output from a DVD recorder / player 501 (not shown) and an analog audio signal output from the AV decoder 408, and switches or synthesizes the image under the control of the microcomputer 416 together with the video switch 409. And output. Further, an amplifier circuit (not shown) amplifies the signal to an appropriate signal level and outputs the amplified signal to the R speaker 413 and the L speaker 414. Reference numeral 410 denotes an RGB processor which converts a video signal output from the video switch 409 into an RGB signal, amplifies the RGB signal to a signal level suitable for display on a display 411 described later, and outputs the signal from a synchronization control circuit of the display 411 (not shown). Output in synchronization with the synchronization signal. Reference numeral 446 denotes an OSD controller, which is controlled by the microcomputer 16 and is suitable for inputting program-related information drawn in the buffer memory 417, data of a program table, a data broadcast screen or a GUI screen, converting the RGB pixels, and displaying the converted data on the display 411. The signal is amplified to the same signal level and output in accordance with a synchronization signal output from a synchronization control circuit of the display 411 (not shown). Reference numeral 445 denotes an RGB switch which inputs RGB data output from the RGB processor 410 and the OSD controller 446, synthesizes the data under the control of the microcomputer 416 via the OSD controller 446, and outputs the combined data. The display 411 may be, for example, a CRT device. An interface device 418, which is a conventional device, has a physical layer in accordance with IEEE 1394, and is connected to a bus for recording a broadcast program received by the television receiver 401. This is an interface for outputting to the recorder / player 501. Reference numeral 419 denotes a TS interface, which is one of the input signal interfaces of the interface device 418, and receives an MPEG-2 TS packet output from the TS decoder 407. The packet may be, for example, a packet of an elementary stream of video or audio, a packet in which BML data of data broadcasting or program-related information is stored in a TS packet. A microcomputer interface 422 is connected to the microcomputer 416 to control each element of the interface device 418, and inputs data to be transmitted as an asynchronous packet under the control of the microcomputer 416. The program-related information referred to here is information related to a program to be recorded or reproduced, and for example, additional information such as a title, an outline, and performers can be considered. Such information can be generated by extracting information related to the corresponding program from the information in the program table. A program-related information memory 423 stores the program-related information input from the microcomputer interface 22. A synchronous transmission / reception unit 424 transmits / receives a synchronization packet synchronized with the timing of a cycle start packet to be received. A protocol is provided for adding a header for a synchronization packet including a channel for guaranteeing a band and data for ensuring continuity to transmission data or deleting a header for a synchronization packet from reception data. Generally, it is called an isochronous protocol. Reference numeral 425 denotes an insertion unit which packetizes the program-related information stored in the program-related information memory 423 into TS format as transmission data, and superimposes and outputs the packet on a TS input from the TS interface 419. As a method of superimposition, it is conceivable that the program-related information is periodically read from the program-related information memory 423 and inserted into the gap of the input TS. Reference numeral 426 denotes a TS transmission / reception unit. At the time of transmission, a header for a synchronization packet is added to the superimposed TS packet output from the insertion unit 425 to form a synchronization packet, which is output to a LINK 429 described later. Reference numeral 430 denotes an asynchronous transmission / reception unit which generates an asynchronous packet storing data input from the microcomputer interface 422 under the control of the microcomputer 416 during transmission, and outputs the asynchronous packet to a LINK 429 described later without synchronizing with the cycle start packet. At the time of reception, an asynchronous packet is input from the LINK 429 and output to the microcomputer interface 422. At the time of transmission, an asynchronous packet header including the address of the destination node and the own node is added to the transmission data under the control of the microcomputer 416, and at the time of reception, the header for the asynchronous packet is deleted and output. Have. Generally, it is called an asynchronous protocol. A link 429 receives transmission packets from the synchronous transmission / reception unit 424 and the asynchronous transmission / reception unit 430 during transmission. The LINK 429 converts and outputs data suitable for the PHY 431 described later, and converts the input data from the PHY 431 into data suitable for the synchronous transmission / reception unit 424 and the asynchronous transmission / reception unit 430 at the time of reception. Reference numeral 31 denotes a PHY, which is a physical layer conforming to the IEEE 1394 standard, and is connected to a bus to which an external DVD recorder / player 501 described later is connected. Reference numeral 432 denotes a node identification information memory, which is a node number for identifying the television receiver 401 among the devices connected to the bus, and a node of a DVD recorder / player 501 (not shown) connected to the bus, which will be described later. The number is stored. The node number of the device connected to the bus can be received from the asynchronous transmission / reception unit 430 or the like at the time of bus configuration, and the microcomputer 416 transmits the node number of the television receiver 401 itself or a DVD recorder / player 501 described later. The node number can be read and recognized. The association between the television receiver 401 connected to the bus and the DVD recorder / player 501, which will be described later, and the node number is such that information indicating the attribute of the device is obtained from each node via the receiving unit under the control of the microcomputer 416. Is defined in the IEEE 1394 standard or the like, and is possible. Reference numeral 436 denotes a channel identification information memory which stores information for identifying a transmission channel logically secured between the television receiver 401 and a DVD recorder / player 501 (not shown), which is described later, on a bus. For example, when transmitting a TS in a synchronization packet using the TS transmission / reception unit of the interface device 418, the isochronous protocol assigns a channel number to secure a logical channel between nodes when transmitting each synchronization packet. The microcomputer 416 can recognize a channel number secured between a DVD recorder / player 501 (not shown), which will be described later.

  Next, the configuration of a DVD recorder / player, which is a conventional playback device connected to the television receiver 401, will be described. In FIG. 27, reference numeral 501 denotes a DVD recorder / player such as a DVD recorder. Reference numeral 537 denotes an antenna for receiving digital television broadcast. A receiving unit 535 selects a digital television broadcast received by the antenna 537 and outputs a TS in which a video signal and an audio signal are multiplexed. Reference numeral 536 denotes a demodulation unit D, which demodulates a signal output from the reception unit D535 by a demodulation method conforming to a broadcasting standard, and outputs a TS. Reference numeral 522 denotes a recording stream selection unit, which switches a TS of a digital television broadcast program received by the antenna 537 or a program received by the interface device 517 described below under control of the microcomputer 520 described later and outputs it. Reference numeral 527 denotes a TS decoder A. When recording a digital television broadcast program received by the antenna 537 on a DVD disk 524 described later, a TS is input from the demodulation unit D536 via the recording stream selection unit 522 and described later. The microcomputer 520 performs packet filtering and data extraction under the control of the microcomputer 520, and outputs a TS packet storing BML data of video, audio, and data broadcast relating to a program to be recorded, and data of a program table. In this case, the TS decoder A 527 inputs program-related information related to the recorded program from the data of the program guide under the control of the microcomputer 520 described later, generates a TS packet storing the program-related information, and outputs the inserted TS. . On the other hand, when the television receiver 401 (not shown) stores the video and audio of the recorded program and the data broadcast or the program-related information in the TS packet and transmits the TS packet to the DVD recorder / player 501, the TS decoder A 527 The TS is input from an interface device 517, which will be described later, via a recording stream selection unit 522, and performs packet filtering and data extraction stored in the packet, and outputs video and audio elementary streams, data broadcast BML data, and program-related data. Output information. If the TS input by the TS decoder A 527 is scrambled in a pay broadcast program or the like, the TS decoder A 527 extracts key information for generating a descrambling key from the scrambled TS, and Output to the card unit 549. The IC card unit 549 acquires a key for descrambling from the inserted IC card based on the input key information, and outputs it to the descramble unit 550. The IC card can be inserted and removed, and the state of insertion and removal of the IC card can be output to a microcomputer 520 described later. The descrambling unit 550 inputs the key from the IC card, inputs the scrambled TS input from the TS decoder A 527, descrambles using the key, and returns to the TS decoder A 527. Reference numeral 523 denotes a recording signal processing unit which includes a scramble circuit, a modulation circuit, a laser, and the like when recording, inputs a recording TS from a TS decoder A 527, and records it on a DVD disk 524 under the control of a microcomputer 520 described later. A servo controller 525 performs servo control, rotation control of the disk 524, tracking, and the like under the control of a microcomputer 520 described later. As the DVD disk, a DVD disk compatible with a blue laser can be considered. Reference numeral 518 denotes a remote controller, which is a user interface of the DVD recorder / player 501. Reference numeral 542 denotes a recording key which is pressed when the receiving unit D535 wants to record (record) a program being received on the DVD disk 524. Reference numeral 543 denotes a reproduction key which is pressed when the user wants to reproduce a program recorded on the DVD disk 524. A stop key 551 is a key that is pressed when the user wants to stop recording or reproducing a program. Reference numeral 563 denotes a program information display key which is pressed when the user wants to display information related to the program being reproduced or being received. Reference numeral 564 denotes a return key which is pressed when the user wants to return to the state before the operation. Reference numeral 567 denotes a d key which is pressed when the user wants to display a data broadcast transmitted by digital broadcasting. Although not shown, a cross key and a d key for operating an index and a data broadcast, which will be described later, are also provided. A light receiving unit 519 receives an infrared signal from the remote controller 518, converts the infrared signal into an electric signal, and outputs the electric signal to a microcomputer 520 described later. A microcomputer 520 controls each element of the DVD recorder / player 501 and controls the file system of the DVD disk 524. The microcomputer 520 inputs BML data of a data broadcast, data of a program guide, and program-related information output from the TS decoder A 527 or a TS decoder B 540, which will be described later, and stores them in the buffer memory 521 and interprets the contents thereof. It draws a data broadcast screen using another area of the buffer memory 521, draws a program table and program-related information, and the like. The microcomputer 520 also controls the NVRAM 552 to update the points and rights obtained by the user included in the data broadcast game or quiz program included in the unique information for each broadcaster. At the time of the next reception, the user reads out the points and rights stored in the NVRAM 552 and controls them so that the user can use them. These operations are performed according to a program stored in a memory (not shown). Reference numeral 529 denotes a program index memory which stores a program to be recorded on the DVD disk 524 and information on the recording position on the DVD disk under the control of the microcomputer 520. A reproduction signal processing unit 545 includes a pickup, a demodulation circuit, a descrambling circuit, and the like for reading a program recorded from the DVD disk 524, inputs a signal recorded from the DVD disk 524, and is controlled by the microcomputer 520. Convert to TS and output. Reference numeral 540 denotes a TS decoder B, which receives a TS input from the reproduction signal processing unit 545, performs packet filtering and extraction of data stored in the packet under the control of the microcomputer 520, and outputs an MPEG-2 decoder 546 or a sub-picture described later. The video or audio elementary stream or sub-picture data is output to the decoder 530. At the same time, it outputs BML data of the data broadcast and program-related information to the microcomputer 520. Reference numeral 546 denotes an MPEG-2 decoder, which inputs the video and audio elementary streams output from the TS decoder B 540, performs MPEG-2 decoding processing, outputs video and audio signals, and broadcasts the video during data broadcast display. Also performs scaling processing, generation of sound effects, and synthesis processing with voice at the reduction ratio or enlargement ratio specified in the definition file of. The output video signal is an analog YUV signal, and the audio signal is an analog LR signal. A sub-picture decoder 530 converts sub-picture data into a YUV signal under the control of the microcomputer 520 and outputs the YUV signal. Reference numeral 553 denotes an OSD controller which converts program-related information drawn in the buffer memory 521 under control of the microcomputer 520, data of a program table, a data broadcast screen, or a GUI screen into a YUV signal, and outputs a synchronization generated by a synchronization generation circuit provided therein. Output according to the signal. This synchronization signal is also output to an MPEG-2 decoder and a sub-picture decoder, and their output YUV signals are synchronized by the synchronization signal. The YUV signal may be an analog YUV signal. Reference numeral 547 denotes a video synthesizing unit which receives the YUV signal output from the MPEG-2 decoder 546, the sub-picture decoder 530, and the OSD controller 553, synthesizes it under the control of the microcomputer 520 via the OSD controller 553, and outputs the YUV signal. The analog YUV signal output from the video synthesizing unit 546 and the analog LR signal output from the MPEG-2 decoder 546 are output to the television receiver 401 (not shown). Reference numeral 517 denotes a conventional interface device, which is provided with a physical layer in accordance with the IEEE 1394 standard corresponding to the physical layer, and is connected to a bus (not shown) for reproducing and displaying a recorded program. This is an interface for outputting to 401. Reference numeral 509 denotes a TS interface, which is one of output signal interfaces of the interface device 517, and outputs a TS packet to the recording stream selection unit 522. The TS packet is, for example, an elementary stream of video or audio, BML data of data broadcasting, A packet storing related information is conceivable. A microcomputer interface 512 is connected to the microcomputer 520 to control each element of the interface device 517, and inputs data to be transmitted as an asynchronous packet under the control of the microcomputer 520. A synchronization transmission / reception unit 505 transmits / receives a synchronization packet synchronized with the timing of a cycle start packet to be received. A protocol for adding a header for a synchronization packet including data for ensuring a channel and continuity for guaranteeing a band to transmission data or removing a header for a synchronization packet from received data is provided. Generally, it is called an isochronous protocol. Reference numeral 506 denotes a TS receiving unit, which deletes a header for a synchronization packet input from a LINK 503 described later and outputs it to the TS interface 509 at the time of reception. An asynchronous transmission / reception unit 504 generates an asynchronous packet storing data input from the microcomputer interface 512 under the control of the microcomputer 520 during transmission, and outputs the packet to a LINK 503 described later without synchronizing with the cycle start packet. In addition, the asynchronous transmission / reception unit 504 inputs an asynchronous packet from a LINK 503 described later and outputs the packet to the microcomputer interface 512 at the time of reception. At the time of transmission, a header for an asynchronous packet including the address of the destination node and the own node is added to the transmission data under the control of the microcomputer 520 and transmitted. At the time of reception, the header for the asynchronous packet is deleted and output. Have. The header and the like for the asynchronous packet will be described later. Generally, it is called an asynchronous protocol. Reference numeral 503 denotes a LINK, which receives transmission packets from the synchronous transmission / reception unit 505 and the asynchronous transmission / reception unit 504 at the time of transmission, converts the data into data suitable for a PHY 502 described later, and outputs the data. The data is converted into data suitable for the asynchronous transmission / reception unit 504 and output. Reference numeral 502 denotes a PHY, which is a physical layer conforming to the IEEE 1394 standard, and is connected to a bus to which an external television receiver 401 (not shown) is connected. Reference numeral 514 denotes a node identification information memory which stores a node number for identifying the DVD recorder / player 501 among the devices connected to the bus and a node number of the television receiver 401 (not shown) connected to the bus. It is remembered. The node number of the device connected to the bus can be received from the asynchronous transmission / reception unit 504 or the like at the time of bus configuration, and the microcomputer 520 determines the node number of the DVD recorder / player 501 itself or the node number of the television receiver 401 or the like. Can be read and recognized. The association between the television receiver 401 and the DVD recorder / player 501 connected to the bus and the node number is because information indicating the attribute of the device can be obtained from each node via the receiving unit under the control of the microcomputer 520. It is possible. A channel identification information memory 515 stores information for identifying a transmission channel secured between the DVD recorder / player 501 and a television receiver 401 (not shown). For example, when transmitting video and audio data and BML data / program related information in a synchronous packet using the TS transmitting / receiving unit of the interface device 517, the isochronous protocol secures a logical channel between nodes when transmitting each synchronous packet. For this purpose, the microcomputer 520 can recognize the channel number secured between the television receivers 401 (not shown).

  The configuration of the synchronous packet and the asynchronous packet described above is shown in the IEEE 1394 standard, and the description is omitted. A packet format conforming to the IEEE 1394 standard is stored in a memory (not shown). When a program is played back, a TS may be output using the IEEE 1394 bus. In this case, however, the AV decoder of the display device generally has a special playback function such as fast forward or rewind playback that is less than that of the playback device. In many cases, the special reproduction is restricted, so that the priority is given to outputting the decoded video signal and audio signal when reproducing the program.

  Next, the operation of the conventional display device, playback device, and interface device used therein will be described with reference to the drawings. A first example in which the television receiver 401 displays a program reproduced by the DVD recorder / player 501 will be described with reference to FIGS. 25 and 28. FIG. 25 is a flowchart showing the operation when the television receiver 401 displays the video and audio of the recorded program reproduced and output by the DVD recorder / player 401, and FIG. 28 is the video and audio reproduced by the DVD recorder / player 501 reproducing the program. 9 is an operation flowchart when outputting. Referring to FIG. 25, first, when the user performs an operation of instructing the DVD recorder / player 501 to reproduce a program using the reproduction key 442 of the remote control 434 of the television receiver 401 (STEP 401), , A playback command is generated, and an asynchronous packet storing the playback command is transmitted to the DVD recorder / player 501 using the asynchronous transmission / reception unit 430 of the interface device 418 (STEP 402). In FIG. 28, the DVD recorder / player 501 receives the command transmitted in STEP 402 using the asynchronous transmission / reception unit 504 (STEP 601), and the microcomputer 520 interprets the reproduction command. The microcomputer 520 searches for data stored in the program index memory 529, confirms the start position of the program to be reproduced, and prepares for reproduction (STEP 602). In this case, the program to be reproduced may be the program recorded immediately before or the program specified in the command received in STEP 601. Under the control of the microcomputer 520, the servo controller 525 and the reproduction signal processing unit 545 read out the program recorded on the DVD disk 524 from the start position and output it. Under the control of the microcomputer 520, the TS decoder B 540 extracts the video and audio MPEG-2 elementary streams and sub-picture data, and outputs the extracted MPEG-2 elementary streams and sub-picture data to the MPEG-2 decoder 546 and the sub-picture decoder 530. The output is output to the microcomputer 320 (STEP 605). The MPEG-2 decoder 546 and the sub-picture decoder 530 respectively decode and generate a YUV signal and an LR signal (STEP 606). The microcomputer 520 controls to output the decoded and combined YUV signal and LR signal to the television receiver 401 as analog video and audio (STEP 607). In FIG. 25, the television receiver 401 subsequently inputs video and audio with an analog YUV signal and an analog LR signal (STEP 405), but when the user performs an input switching operation using the input switching key 453 of the remote controller 434. The microcomputer 416 recognizes the operation, switches the video switch 9 and the audio switch 12 to the analog input terminal connected to the DVD recorder / player 501 (not shown) (STEP 406), and switches the input video and audio. The display is controlled (STEP 407).

  Next, an example of displaying program-related information of a reproduced program will be described with reference to FIG. FIG. 29 shows an example in which the DVD recorder / player 301 outputs program-related information. FIG. 29 shows a case where the user presses the program information display key 563 of the remote controller 518 of the DVD recorder / player 501 after STEP 407 to instruct display of program-related information related to the program being reproduced. The microcomputer 520 interprets the instruction. The microcomputer 520 recognizes the instruction to display the program-related information of the program being reproduced in STEP 605 (STEP 641). The microcomputer 520 obtains the program-related information of the program being reproduced by using the TS decoder B 540, and controls the OSD controller 553 and the video synthesizing unit 547 to synthesize and output the video (STEP 642). Thereafter, the user can scroll the display screen of the program-related information using the remote controller 518 while viewing the program-related information. However, the user presses the return key 564 of the remote controller 518 to give an instruction to stop the display of the program-related information. In this case, the microcomputer 520 recognizes the display termination request of the program-related information of the program being reproduced (STEP 643), and terminates the output of the program-related information screen in STEP 642 (STEP 644).

  Next, an example of displaying a data broadcast related to a program to be reproduced will be described with reference to FIG. FIG. 30 shows an example in which the DVD recorder / player 501 outputs a data broadcast screen. FIG. 30 illustrates an example in which the user presses the d key 567 of the remote control 518 of the DVD recorder / player 501 to display a data broadcast related to the program reproduced in STEP 605. The microcomputer 520 recognizes the display instruction of the data broadcast screen (STEP 661), and inputs the BML definition file and the BML data relating to the program being reproduced from the TS decoder B 540, interprets the definition file, and interprets the definition file. The microcomputer 520 performs decoding in accordance with the decoding, and synthesizes the video of the program being reproduced by controlling the OSD controller 553 and the video synthesizing unit 547 on the top screen of the data broadcast in the format indicated by the BML definition file. If the definition file indicates a video scaling instruction, the microcomputer 520 performs scaling processing according to the definition file instruction on the video data to be decoded in STEP 606 using an MPEG-2 decoder 546, and performs data broadcasting. Is controlled so as to be displayed in combination with the first screen. If an instruction to output a sound effect is given in the definition file, the microcomputer 520 controls so that the sound effect generated by using the MPEG-2 decoder 546 is synthesized with the sound data to be decoded in STEP 606 and output. (Step 662). Thereafter, the user can operate the data broadcast screen using the remote controller 518 to perform page turning or the like, but pressed the d key 567 of the remote controller 518 to give an instruction to stop displaying the data broadcast screen synthesized in STEP662. In this case, the microcomputer 320 interprets it (STEP 663), and terminates the decoding and display of the data broadcast screen, the scaling of the video, and the generation and synthesis of the sound effect in STEP 662 (STEP 664).

26 and 31 show an operation example when the display of the video and audio of the program being reproduced is ended. 26 shows an example when the television receiver 401 ends the display, and FIG. 31 shows an example when the DVD recorder / player 501 ends the reproduction of the program. In FIG. 26, when the user performs an operation of instructing stop of reproduction of the DVD recorder / player 501 using the stop key 441 of the remote control 434 of the television receiver 401 (STEP 471), the microcomputer 416 transmits a signal from the light receiving unit 439. Interpretation is performed, a playback stop command is generated, and an asynchronous packet storing the playback stop command is transmitted to the DVD recorder / player 501 using the asynchronous transmission / reception unit 430 of the interface device 418 (STEP 472). In FIG. 31, the DVD recorder / player 501 receives a command for stopping reproduction and data associated with the command using the asynchronous transmission / reception unit 504 (STEP 671), and the microcomputer 520 ends reproduction of the program and transmission of the packet (STEP 672). The microcomputer 416 ends the display of the video and the output of the audio (STEP 473).
JP 2000-261802 A

  However, with the above configuration and operation, the user can decode and display the program-related information or the data broadcast in the program played by the playback device such as a DVD player on a display device such as a television receiver. The problem of the inability to operate the data broadcast display screen with the remote control of the device, and in particular, when displaying the data broadcast screen relating to the program to be played back by the playback device on the display device, the user is required to use the broadcast stored in the television receiver. There has been a problem that it is not possible to apply points and rights acquired by a user in data specific to each business, for example, in data broadcasting.

  In addition, a television receiver or the like as a display device is connected to a DVD recorder / player as a playback device through a plurality of transmission paths having different protocols, such as an IEEE 1394 signal, an analog YUV signal, and an analog LR signal. The connection between the playback device and the display device is difficult to achieve wireless transmission, and even if wired transmission, However, it is necessary to use at least three types of cables, and there has been a problem of being complicated.

  SUMMARY OF THE INVENTION It is an object of the present invention to provide a display device and a reproducing device which solve the above-mentioned conventional problems and an interface device used for them.

  The display device of the present invention is a display device that receives recorded information read from a recording medium of a playback device via a transmission medium and outputs video information and audio information. Receiving video information of the uncompressed format after decoding from the transmission channel and audio information of the uncompressed format after decoding from the second transmission channel, and transmitting related information of the recorded program or related data broadcast program information in a transport stream format. Receiving means for receiving from the third transmission channel, command receiving means for receiving a command from the playback device, command transmission means for sending a command to the playback device, and receiving a broadcast program from a broadcast wave or a communication network. Broadcast receiving means, and video information and audio information of a broadcast program received by the broadcast receiving means in an appropriate decoding method. A first decoding unit for inputting related information of a recorded program or data broadcast program information received by the receiving unit or a broadcast program related information or data broadcast program information received by the broadcast receiving unit. A second decoding means for decoding the video information and audio information of the recorded program received by the receiving means, and a video information and audio information of the broadcast program output by the first decoding means. Output means for synthesizing / selecting the video information and audio information output by the selection means and the video information and audio information decoded by the second decoding means, and outputting When a non-volatile memory that stores broadcaster-specific information acquired by receiving a broadcast program and outputs video information and audio information related to the recorded program, Based on the information indicating the association between the video information and the audio information of the recorded program stored in the received command and the related information or the related data broadcast program information and the transmission channel, the decoding of the second decoding means and The output means controls on / off of synthesis / selection of video information and audio information output by the second decoding means, reads out unique information for each broadcaster from the non-volatile memory, and transmits the command transmission means. And control means for controlling transmission using the control signal.

  Further, the reproducing apparatus of the present invention may be configured to separate the recording information read from the recording medium into a recording program recorded in a transport stream format and separate the recording program into video information and audio information, related information and related data broadcast program information. Means, first decoding means for decoding video information and audio information output by the separation means, and second decoding means for decoding related information of a recorded program or data broadcast program information output by the separation means by an appropriate decoding method. Decoding means, output means for synthesizing / selecting video information and audio information output by the first decoding means and video information and audio information decoded by the second decoding means and outputting the same, and the output means Transmitting the video information and audio information in the uncompressed format output by the first and second transmission channels for securing on the transmission medium, Transmitting means for transmitting the related information of the recorded program to be output before decoding and related data broadcast program information on a third transmission channel which is secured on a transmission medium; command receiving means for receiving a command from the display device; Command transmission means for transmitting a command to a display device, a non-volatile memory for storing broadcaster-specific information acquired by a user receiving a broadcast program, video information and audio information relating to the recorded program, and a recorded program Control to transmit a command indicating the association between the related information and the related data broadcast program information and the transmission channel, and when transmitting the related information of the recorded program or the data broadcast program to the display device, Video information and video information to be decoded by the second decoding means in the output means and the decoding of the second decoding means. And ON / OFF of synthesis / selection of voice information and voice information, and when the command receiving means receives the broadcaster specific information stored in the nonvolatile memory of the display device, And control means for controlling the second decoding means to appropriately decode by applying the broadcaster-specific information stored in the nonvolatile memory.

  In the display device and the playback device of the present invention, in the interface device used for them, a display device such as a television receiver converts program-related information or data broadcast data in a program played by a playback device such as a DVD player into video and audio data. By being able to receive and decode in accordance with the transmission format, the television receiver can display the data broadcast of the reproduced program in association with video and audio and operate with the remote control in the same way as when receiving from a broadcast. Become. Therefore, the problem of the inconvenience of operating using the remote controllers of both the display device and the playback device in the related art can be solved.

  In addition, the playback device can use the broadcaster-specific information stored in the display device when playing the program. Therefore, in the conventional display of the data broadcast screen related to the program played by the playback device, since the points and rights acquired when the user receives the data broadcast using the display device cannot be applied, It is possible to solve the problem of inconvenience that past reception histories cannot be used for data broadcasting in the case of reproduction.

  In addition, since the video signal data, the audio signal data, the data of the data broadcast, and the data of the program-related information in the program can be transmitted in an appropriate transmission format according to the connection mode while being associated, It is possible to solve the problem that the connection between devices cannot be performed by wireless communication of a single communication standard, and the problem that at least three types of cables need to be used even in the case of wired transmission, which is complicated. It is characterized by.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration of a system according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 denotes a television receiver. Reference numeral 38 denotes an antenna for receiving a digital television broadcast. Reference numeral 5 denotes a receiving unit D, which is composed of a tuner unit. The receiving unit D5 selects a digital television broadcast received by the antenna 38, and outputs a signal in which a TS such as MPEG-2 in which a video signal and an audio signal are multiplexed is modulated. The video signal and the audio signal are subjected to compression according to the MPEG-2 standard and then subjected to data conversion. Further, at the time of transmission by digital television broadcasting or recording on a recording device, the data is stored in a packet of a predetermined size and stream-converted from a multiplexed packet group. In MPEG-2, as a format of this stream, a transport stream (TS) for transmission and a program stream (PS) for recording are standardized. A packet forming a TS is called a TS packet, and a packet forming a PS is called a PS packet. Further, the TS can be used for recording. Here, the compressed format signal is an MPEG-2 TS or MPEG-2 PS format signal, and the uncompressed format signal is an uncompressed baseband video signal or audio signal. . Reference numeral 6 denotes a demodulation unit D, which demodulates a signal output from the reception unit D5 by a demodulation method conforming to a broadcasting standard and outputs a TS. A TS decoder 7 selects and outputs a digital television broadcast program received by the antenna 38. When recording a program on a DVD recorder / player 301 (not shown) connected to the television receiver 1, the TS decoder 7 inputs a TS from the demodulation unit D6, performs packet filtering, and performs packet filtering on the program to be recorded. It outputs a TS in which relevant video, audio, data broadcast and program guide data is stored. On the other hand, when the digital television broadcast program received by the antenna 38 is displayed, the TS decoder 7 receives the TS from the demodulation unit D6 and performs packet filtering and data stored in the packet under the control of the microcomputer 16 described later. And outputs elementary streams of video and audio, BML data of data broadcasting, and data of a program guide. In addition, the TS decoder 7 decodes video and audio after reproducing a program transmitted by a DVD recorder / player 301 (not shown), and decodes the uncompressed format signal and the BML data of the data broadcast related to the compressed format program. Alternatively, when displaying the program-related information, a packet storing the BML data of the data broadcast and the program-related information is input from an interface device 18 described later, and a packet filtering process and an extraction process of the data stored in the packet are performed. And outputs the BML data of the data broadcast and the program related information. On the other hand, when displaying a video of a recorded program transmitted by a DVD recorder / player 301 (not shown) and a signal of a compression format before decoding of the video and BML data of the data broadcast of the compression format or program-related information, The TS decoder 7 inputs a TS from an interface device 18 described later, performs a packet filtering process and a process of extracting data stored in a packet, and outputs an elementary stream of video and audio, BML data of data broadcast, Output related information. If the input TS is scrambled for a pay broadcast program or the like, the TS decoder 7 extracts key information for generating a key for descrambling from the scrambled TS, and outputs the key information to the IC card unit 50. Output to The IC card unit 50 acquires a key for descrambling from the inserted IC card based on the input key information, and outputs it to the descramble unit 51. The IC card can be inserted and removed, and the state of insertion and removal of the IC card can be output to the microcomputer 16. The descrambling unit 51 inputs a key from the IC card 50, inputs a scrambled TS input from the TS decoder 7, performs descrambling using the key, and returns to the TS decoder 7. Numeral 8 denotes an AV decoder, which inputs a video or audio elementary stream output from the TS decoder 7, performs a decoding process in accordance with a broadcasting standard such as MPEG-2, outputs a video signal and an audio signal, and outputs When displaying a data broadcast received from a PC, the video scaling process is performed at a reduction ratio or an enlargement ratio specified by a data broadcast definition file, and a sound effect generation process and a sound synthesis process are also performed. The output video signal is a digital YUV signal, and the audio signal is a digital LR signal. This YUV signal is output from ITU-R BT. A signal as shown at 656-4 is conceivable. Reference numeral 34 denotes a remote controller, which is a user interface of the television receiver 1. Reference numeral 35 denotes a recording key, which is pressed when the user wants to record a program being received on a DVD recorder / player 301 (not shown), which will be described later. Reference numeral 42 denotes a reproduction key which is pressed when the user wants to reproduce a program on a connected DVD recorder / player (not shown). Reference numeral 41 denotes a stop key which is pressed when the user of the DVD recorder / player wants to stop recording or reproducing a program. Reference numeral 43 denotes a program information display key which is pressed when the user wants to display information related to a program being reproduced or being received. A return key 44 is a key pressed when the user wants to return to the state before the operation. 47 is a d key which is pressed when the user wants to display the data broadcast of the program being reproduced or received. Although not shown, a cross key for operating the data broadcast screen is provided. A light receiving unit 39 receives an infrared signal from the remote controller 34, converts the infrared signal into an electric signal, and outputs the electric signal to the microcomputer 16 described later. A microcomputer 16 controls each element of the television receiver 1. The microcomputer 16 receives the data broadcast BML data and program guide data from the receiving unit D5 via the TS decoder 7, or the data broadcast BML data and program related data input from the interface device 18 to be described later via the TS decoder 7. Information is input, the contents thereof are interpreted, and a data broadcast screen is constructed and drawn using the buffer memory 17, and a program table and program-related information are drawn. The microcomputer 16 also performs control for updating points and rights obtained by the user in data broadcast games and quiz programs included in the unique information for each broadcaster stored in the NVRAM 52. Further, the microcomputer 16 reads out the unique information for each broadcaster stored in the NVRAM 52 at the time of the next reception by the user, and controls the user so that the user can use it. These controls are executed according to a program stored in a memory (not shown). Reference numeral 48 denotes a YUV scaling unit which inputs a non-compressed format YUV signal after decoding of a video of a recorded program from a DVD recorder / player 301 (not shown) via an interface unit 18 and a TS decoder from the interface unit 18. 7 is scaled to the reduction ratio or the enlargement ratio specified in the definition file of the data broadcast received via 7, and output. Reference numeral 9 denotes a video switch, which inputs a video signal output from the YUV scaling 48 and the AV decoder 8 and switches and outputs it under the control of the microcomputer 16. Reference numeral 49 denotes an audio synthesizing unit which receives an LR signal of a sound effect generated by the AV decoder 8 according to the definition file of the data broadcast under the control of the microcomputer 16 and a DVD recorder / player 301 (not shown) which will be described later. An LR signal in an uncompressed format input via the interface device 18 is synthesized and output at a predetermined synthesis rate. Reference numeral 12 denotes an audio switch, which inputs an audio signal output from the audio synthesizer 49 and the AV decoder 8, and switches and outputs the signal together with the video switch 9 under the control of the microcomputer 16. Reference numeral 10 denotes an RGB processor which converts a video signal output from the video switch 9 into an RGB signal, amplifies the RGB signal to a signal level suitable for display on a display 11 described later, and outputs the signal from a synchronization control circuit of the display 11 (not shown). Output in synchronization with the synchronization signal. Reference numeral 46 denotes an OSD controller, which inputs program-related information drawn in the buffer memory 17 under control of the microcomputer 16, data of a program table, data broadcast screen or GUI screen, converts the RGB pixels, and displays it on the display 11. The signal is amplified to the same signal level and output in accordance with a synchronization signal output from a synchronization control circuit of the display 11 (not shown). Reference numeral 45 denotes an RGB switch which receives RGB data output from the RGB processor 10 and the OSD controller 46, combines the RGB data under the control of the microcomputer 16 via the OSD controller 46, and outputs the combined data. The display 11 may be any display device such as a CRT, a PDP, and an LCD, and may be outside the television receiver 1. Reference numeral 37 denotes a DAC which converts an audio signal output from the audio switch 12 into an analog signal and outputs the analog signal. Further, an amplifier circuit (not shown) amplifies the signal to a suitable signal level and outputs the amplified signal to the R speaker 13 and the L speaker 14. Note that the R speaker 13 and the L speaker 14 may be outside the television receiver 1. Reference numeral 18 denotes an interface device, which has a physical layer conforming to, for example, IEEE1394 or IEEE802.3 or USB standard or HDMI or DVI if wired, or IEEE802.11 or UWB if wireless.

  The interface device 18 outputs a broadcast program received by the television receiver 1 to a DVD recorder / player 301 (not shown) connected to a bus for recording the broadcast program, or a DVD recorder / player 301 described later. This is an interface for inputting a signal of a reproduced program. Reference numeral 19 denotes a TS interface, which is one of an input signal and an output signal interface of the interface device 18, for inputting a signal of a compression format such as MPEG-2 TS output from the TS decoder 7 and for inputting an MPEG-2 signal to the TS decoder 7. In some cases, a signal of a compression format such as TS is output. The packet may be, for example, a packet storing an elementary stream of video or audio, BML data of data broadcasting, or program-related information. Reference numeral 20 denotes a YUV interface, which is one of the output signal interfaces of the interface device 18 and is an ITU-R BT. A YUV video signal in an uncompressed format as shown by 656-4 is output. Reference numeral 21 denotes an LR interface, which is one of output signal interfaces of the interface device 18 and outputs an LR audio signal in an uncompressed format such as I2S. In this example, two channels of LR are used. However, there may be a case where the number of channels is increased to support 5.1 channels. Reference numeral 22 denotes a microcomputer interface, which is connected to the microcomputer 16 for controlling each element of the interface device 18 and inputs data to be transmitted in an asynchronous packet, which will be described later, such as program-related information under the control of the microcomputer 16; The BML data and program-related information of the data broadcast received in the packet are output under the control of the microcomputer 16. The program-related information referred to here is information related to a program to be recorded or reproduced, and for example, additional information such as a title, an outline, and performers can be considered. Such information can be generated by extracting information related to the corresponding program from the information in the program table. A program-related information memory 23 stores the program-related information input from the microcomputer interface 22. Reference numeral 24 denotes a synchronous transmission / reception unit which transmits / receives a synchronization packet synchronized with the timing of a cycle start packet to be received. A protocol is provided for adding a header for a synchronization packet including data for ensuring a channel and continuity for guaranteeing bandwidth to transmission data or deleting a header for a synchronization packet from reception data. Generally, it is called an isochronous protocol. Reference numeral 25 denotes an insertion unit which stores the program-related information stored in the program-related information memory 23 as transmission data in a TS packet, and superimposes it on an input TS from the TS interface 19 and outputs the data. As a method of superimposition, it is conceivable that the program-related information is periodically read out from the program-related information memory 23 and inserted into the gap of the input TS. Reference numeral 26 denotes a TS transmission / reception unit. At the time of transmission, a header for a synchronization packet is added to the superimposed TS packet output from the insertion unit 25 to form a synchronization packet and output to a LINK 29 described later. The header for the synchronization packet to be deleted is deleted and output to the TS interface 19. Reference numeral 27 denotes a YUV receiving unit which inputs a synchronization packet storing a divided uncompressed format video signal from a LINK 29 described later, deletes a synchronization packet header, and appropriately combines the uncompressed format video signal to obtain a YUV reception signal. Output to the interface 20. It is conceivable that the video signal is divided for each number of lines determined according to the transmission band, and the time interval of each line at the time of connection is uniquely determined by the video format. It is possible to return the divided lines to the state before the division. Reference numeral 28 denotes an LR receiving unit which inputs a synchronization packet storing a divided uncompressed format audio signal from a LINK 29 described later, deletes a synchronization packet header, and appropriately combines the uncompressed format audio signal to obtain an LR. Output to the interface 21. It is conceivable that the audio signal is divided for each number of samples determined according to the transmission band, and the time interval between each sample is uniquely determined by the audio format, and the sample frequency is longer than the synchronization packet reception cycle. By recognizing the format and the sample frequency in advance, it is possible to return the divided samples to the state before the division. Recognition in the above connection can be recognized on the receiving side because information for identifying the format such as the audio sampling frequency is stored in the header for the synchronization packet as shown in the configuration example of the synchronization packet in FIG. is there. Reference numeral 30 denotes an asynchronous transmission / reception unit which generates an asynchronous packet storing data input from the microcomputer interface 22 under the control of the microcomputer 16 during transmission, and outputs the asynchronous packet to a LINK 29 described later without synchronizing with the cycle start packet. At the time of reception, an asynchronous packet is input from the LINK 29 and output to the microcomputer interface 22. At the time of transmission, a protocol for adding a header for an asynchronous packet including the address of the destination node and the own node to the transmission data under the control of the microcomputer 16 and transmitting the data, and removing the header for the asynchronous packet at the time of reception, and outputting the protocol. Have. Generally, it is called an asynchronous protocol. A configuration example of the packet will be described later. When transmitting the program-related information, the asynchronous transmission / reception unit 30 inputs the program-related information stored in the program-related information memory 23, adds a header for an asynchronous packet, and transmits the asynchronous packet. Therefore, it is not necessary to separately provide a program-related information memory for the TS transmitting / receiving section. Reference numeral 29 denotes a LINK, which receives transmission packets from the synchronous transmission / reception unit 24 and the asynchronous transmission / reception unit 30 at the time of transmission, converts the packets into data suitable for a PHY 31 described later, and outputs the data. The LINK 29 converts the input data from the PHY 31 into data suitable for the synchronous transmission / reception unit 24 and the asynchronous transmission / reception unit 30 at the time of reception, and outputs the data. Reference numeral 31 denotes a PHY, which is a physical layer conforming to IEEE 1394, IEEE 802.3, USB standard, HDMI standard, IEEE 802.11, or UWB, and is connected to a bus to which an external DVD recorder / player 301 described later is connected. Reference numeral 32 denotes a node identification information memory, which is a node number for identifying the television receiver 1 among devices connected on the bus, and a node of a DVD recorder / player 301 (not shown) connected on the bus, which will be described later. The number is stored. The node number of the device connected to the bus can be received from the asynchronous transmission / reception unit 30 or the like at the time of bus configuration, and the microcomputer 16 determines the node number of the television receiver 1 itself or a node such as a DVD recorder / player 301 described later. The number can be read and recognized. The association between the television receiver 1 connected to the bus and the DVD recorder / player 301, which will be described later, and the node number is such that information indicating the attribute of the device is acquired from each node via the receiving unit under the control of the microcomputer 16. Is possible in each standard such as the IEEE 1394 standard. Numeral 36 denotes a channel identification information memory, which stores information for identifying a transmission channel logically secured between the television receiver 1 and a DVD recorder / player 301 (not shown) on the bus. For example, when transmitting video and audio data and BML data / program related information in a synchronization packet using the TS transmission / reception unit of the interface device 18, the isochronous protocol uses a logical channel between nodes when transmitting each synchronization packet. Since a channel number is allocated for securing, the microcomputer 16 can recognize the channel number secured between a DVD recorder / player 301 (not shown) which will be described later. Reference numeral 53 denotes a command format memory which stores a command format indicating association between video information of a recorded program, audio information of the recorded program, and a transmission channel, which will be described later with reference to FIG. 10 or FIG. The command format memory 53 is stored in the television receiver 1, and the command format memory 354 is stored in the DVD recorder / player 301. The microcomputer 16 and the microcomputer 320 read the formats stored in these memories to generate a transmission packet indicating the association between the video information of the recorded program, the audio information of the recorded program, and the transmission channel, or interpret the received packet. Can be.

  In the configuration, a receiving unit for receiving analog television broadcasts, a demodulation unit, and an MPEG-2 encoder may be newly provided, and analog television broadcasts may be converted into TSs and transmitted to a DVD recorder / player 301 described later. . Also, the input signals of the video switch 9 and the audio switch 12 have been described as being digital, but may be analog. In that case, it is conceivable to arrange a DAC after the YUV interface 20 or the LR interface 21. Also, the case where a received program is received from a broadcast wave has been described. However, instead of the antenna 38, a broadband router connected to a network such as the Internet is installed, and the receiving unit D5 selects and receives from the network by an address on the network. It is also conceivable.

  When the YUV scaling unit 48 is built in the interface device 18 or built in the video switch 9 or the RGB processor 10, the YUV scaling unit 48 is arranged before the RGB processor 10 and scales only for the YUV signal input from the interface device 18. It is also conceivable to let them. It is also conceivable that the audio synthesizer 49 is built in the audio switch 12, the AV decoder 8, and the interface device 18 and synthesizes only the LR signal input from the interface device 18. Also, BML is an example, and other document formats such as HTML and XML may be used.

  In addition, although the example in which the TS interface, the YUV interface, and the LR interface are provided in the same interface device 18 has been described, the interfaces and the related transmission / reception units may be divided into interfaces having different LINKs and physical layers. For example, the TS interface 19, the insertion unit 25, the TS transmission / reception unit 26, the microcomputer interface 22, the asynchronous transmission / reception unit 30, the program-related information memory 23, the node identification information memory 32, and the channel identification information memory 36 are composed of an IEEE1394 interface, a USB interface, and IEEE802.3. The YUV interface 20, the LR interface 21, the YUV receiving unit 27, and the LR receiving unit 28 provided in the interface may be provided in the HDMI interface or the analog video / audio interface. In the case of the analog interface, the LINK 29 and the asynchronous protocol are not required.

  Next, the configuration of a DVD recorder / player connected to the television receiver 1 will be described. In FIG. 13, reference numeral 301 denotes a recording device such as a DVD recorder / player. 337 is an antenna for receiving digital television broadcasts. Reference numeral 335 denotes a receiving unit D, which is composed of a tuner unit. The digital television broadcast received by the antenna 337 is selected, and a signal in which a TS in which a video signal and an audio signal are multiplexed is modulated is output. A demodulation unit D 336 demodulates a signal output from the reception unit D335 by a demodulation method according to a broadcast standard, and outputs a TS. Reference numeral 322 denotes a recording stream selection unit, which switches a TS of a digital television broadcast program received by the antenna 337 or a program received by the interface device 317 described below under the control of the microcomputer 320 described later and outputs it. Reference numeral 327 denotes a TS decoder A. When recording a digital television broadcast program received by the antenna 337 on a DVD disk 324 described later, a TS is input from the demodulation unit D336 via the recording stream selection unit 322, and described later. Under the control of the microcomputer 320, packet filtering and data extraction are performed. In this case, a TS packet storing BML data of video, audio, and data broadcasting relating to a program to be recorded and data of a program table are output. Also, under the control of the microcomputer 320 described later, program-related information related to the recorded program is input from the data of the program guide, and a TS packet storing the program-related information is generated and the inserted TS is output.

  On the other hand, when the television receiver 1 (not shown) stores the video and audio of the recorded program and the data broadcast or the program-related information in the TS and transmits it to the DVD recorder / player 301, the TS decoder A327 Is input from an interface device 317 to be described later via a recording stream selection unit 322, and performs packet filtering and extraction of data stored in the packet, and outputs video and audio elementary streams, BML data of data broadcasting, and program-related information. Is output.

When the TS input by the TS decoder A327 is scrambled in a pay broadcast program or the like, the TS decoder A327 extracts key information for generating a descrambling key from the scrambled TS, and Output to the card unit 349. The IC card section 349 acquires a key for descrambling from the inserted IC card based on the input key information, and outputs it to the descrambling section 350. The IC card can be inserted and removed, and the state of insertion and removal of the IC card can be output to a microcomputer 320 described later. The descrambling unit 350 inputs a key from the IC card, inputs a scrambled TS input from the TS decoder A 327, performs descrambling using the key, and returns to the TS decoder A 327. Reference numeral 323 denotes a recording signal processing unit which includes a scramble circuit, a modulation circuit, a laser, and the like for recording, receives a recording TS from a TS decoder A 327, and records the recording TS on a DVD disk 324 under the control of a microcomputer 320 described later. . A servo controller 325 performs servo control, rotation control of the disk 324, tracking, and the like under the control of a microcomputer 320 described later. The DVD disk may be a blue laser compatible DVD disk or the like. Reference numeral 352 denotes an NVRAM in which unique information for each broadcaster is stored. Points and rights obtained in games, quiz programs, and the like when the user receives a data broadcast using the DVD recorder / player 301 are stored. A remote controller 318 is a user interface of the DVD recorder / player 301. A recording key 342 is a key pressed when the receiving unit D335 wants to record (record) a program being received on the DVD disk 324. A reproduction key 343 is a key pressed when the user wants to reproduce a program recorded on the DVD disk 324. A stop key 351 is a key pressed when the user wants to stop recording or reproducing a program. Although not shown, a cross key and a d key for operating an index and a data broadcast, which will be described later, are also provided. A light receiving unit 319 receives an infrared signal from the remote controller 318, converts the infrared signal into an electric signal, and outputs the electric signal to a microcomputer 320 described later. A microcomputer 320 controls each element of the DVD recorder / player 301 and controls the file system of the DVD disk 324. Then, the microcomputer 320 inputs BML data of a data broadcast, data of a program guide, and program-related information output from the TS decoder A 327 or a TS decoder B 340 described later, accumulates them in the buffer memory 321 and interprets the contents thereof. It draws a data broadcast screen using another area of the buffer memory 321, draws a program table and program-related information, and the like. The microcomputer 320 also performs control to update the points and rights obtained by the user in the data broadcast game or quiz program included in the unique information for each broadcaster in the NVRAM 352. In addition, the microcomputer 320 reads out the unique information for each broadcaster stored in the NVRAM 352 at the time of the next reception by the user, and performs control so that the user can use the information. These controls are executed according to a program stored in a memory (not shown). A program index memory 329 stores a program recorded on the DVD disk 324 in association with a recording position on the DVD disk, resolution information of a recording stream, and audio format information under the control of the microcomputer 320. For example, it is conceivable to store the track or sector number at the start position of the program. The microcomputer 320 can recognize the resolution information and the audio format information by referring to the bit rate information, the number of audio channels, and the sampling frequency information described in the program-related information in the TS at the time of recording. Reference numeral 345 denotes a reproduction signal processing unit which includes a pickup, a demodulation circuit, a descrambling circuit, and the like for reading out a program recorded from the DVD disk 324, inputs a signal recorded from the DVD disk 324, and controls the microcomputer 320. To convert to TS and output. Reference numeral 340 denotes a TS decoder B, which inputs a TS input from the reproduction signal processing unit 345, performs packet filtering and extraction of data stored in the packet under the control of the microcomputer 320, and outputs an MPEG-2 decoder 346 or a sub picture described later. It outputs video or audio elementary streams or sub-picture data to the decoder 330. On the other hand, the TS decoder B 340 outputs the TS packet storing the BML data of the data broadcast and the program-related information to the interface device 317 described later, and outputs the stored BML data of the data broadcast and the program-related information to the microcomputer 520. I do. Reference numeral 328 denotes a program-related information memory which stores program-related information related to a program to be reproduced extracted by the TS decoder B 340 under the control of the microcomputer 320. Reference numeral 346 denotes an MPEG-2 decoder, which inputs a video or audio elementary stream output from the TS decoder B 340, performs MPEG-2 decoding processing, and outputs a video signal and an audio signal. At the time of data broadcast display, the video is also subjected to scaling processing at a reduction rate or enlargement rate specified by a definition file of the data broadcast, generation of sound effects, and synthesis processing of audio. The output video signal is a digital YUV signal, and the audio signal is a digital LR signal. A sub-picture decoder 330 converts sub-picture data into a YUV signal under the control of the microcomputer 320 and outputs the YUV signal. An OSD controller 353 converts program-related information drawn in the buffer memory 321 under control of the microcomputer 320, data of a program table, a data broadcast screen, or a GUI screen into YUV signals, and outputs the same from a synchronization generation circuit provided therein. Output in synchronization with the synchronization signal. This synchronization signal is also output to an MPEG-2 decoder and a sub-picture decoder, and their output YUV signals are synchronized by the synchronization signal. This YUV signal is based on ITU-R BT. A signal as shown at 656-4 is conceivable. Reference numeral 347 denotes a video synthesizing unit which receives a YUV signal output from the MPEG-2 decoder 346, the sub-picture decoder 330, and the OSD controller 353, synthesizes it under the control of the microcomputer 320 via the OSD controller 353, and outputs a YUV signal. An interface device 317 includes a physical layer conforming to the IEEE 1394, IEEE 802.3, or USB standard, HDMI, DVI, IEEE 802.11, UWB, or the like corresponding to the physical layer provided in the interface 18 of the television receiver 1. The interface device 317 outputs to the television receiver 1 (not shown) connected to the bus when the DVD recorder / player 301 reproduces and displays the recorded program, or the television receiver 1 receives the program. An interface for inputting when recording a broadcast program.
Reference numeral 309 denotes a TS interface, which is one of the input signal and output signal interfaces of the interface device 317. There are cases where a TS packet storing BML data and program-related information output by the TS decoder B 340 is input, and cases where a TS packet is output to the recording stream selection unit 322. The TS packet may be a packet storing, for example, an elementary stream of video or audio, BML data of data broadcasting, or program-related information. Reference numeral 310 denotes a YUV interface, which is one of the input signal interfaces of the interface device 18 and is ITU-R BT. A signal of an uncompressed format YUV video as shown by 656-4 is input. Reference numeral 311 denotes an LR interface, which is one of input signal interfaces of the interface device 18 and inputs an LR audio signal in an uncompressed format such as I2S. In this example, two channels are used, but a case where the number of channels is increased to support 5.1 channels is also conceivable. Reference numeral 312 denotes a microcomputer interface, which is connected to the microcomputer 320 to control each element of the interface device 317 and inputs data for transmitting BML data, program-related information, and the like in an asynchronous packet described later under the control of the microcomputer 320. The program related information referred to here is information related to a program to be reproduced, and for example, information such as a title, an outline, and performers can be considered. Such information can be generated by the microcomputer 320 extracting the program-related information of the program from the TS of the program to be reproduced using the TS decoder B340. A synchronous transmission / reception unit 305 transmits / receives a synchronization packet synchronized with the timing of the cycle start packet to be received. A protocol is provided for adding a header for a synchronization packet including a channel for guaranteeing a band and data for ensuring continuity to transmission data or deleting a header for a synchronization packet from reception data. This protocol is generally called an isochronous protocol.
Reference numeral 306 denotes a TS transmission / reception unit, which adds a header for a synchronization packet to a TS packet output from the TS interface 309 during transmission to form a synchronization packet, and outputs the packet to a LINK 303 described later. Alternatively, upon reception, a header for a synchronization packet input from a LINK 303 described later is deleted and output to the TS interface 309. Reference numeral 307 denotes a YUV transmission unit which receives an uncompressed video signal from the YUV interface 310, appropriately divides it, adds a header for a synchronization packet, and outputs it to a LINK 303 described later. It is conceivable that the division of the video signal is performed for each line number determined according to the transmission band. Reference numeral 311 denotes an LR transmission unit which inputs an uncompressed audio signal from the LR interface 311, appropriately divides the signal, adds a header for a synchronization packet, and outputs it to a LINK 303 described later. It is conceivable that the audio signal is divided for each sample number determined according to the transmission band. An example of the header for the synchronization packet has already been shown in the configuration example of the synchronization packet in FIG. An asynchronous transmission / reception unit 304 generates an asynchronous packet storing data input from the microcomputer interface 312 under the control of the microcomputer 320 during transmission, and outputs the asynchronous packet to a LINK 303 described below without synchronizing with the cycle start packet. An asynchronous packet is input from a LINK 303 described later and output to the microcomputer interface 312. The asynchronous transmission / reception unit 304 adds an asynchronous packet header including the address of the destination node and the own node to the transmission data under the control of the microcomputer 320 during transmission, and deletes the asynchronous packet header during reception. And output the protocol. The header and the like for the asynchronous packet will be described later. Generally, it is called an asynchronous protocol. Reference numeral 303 denotes a LINK, which receives transmission packets from the synchronous transmission / reception unit 305 and the asynchronous transmission / reception unit 304 during transmission, converts the packets into data suitable for a PHY 302 described later, and outputs the converted data. Alternatively, at the time of reception, input data from PHY 302 is converted into data suitable for synchronous transmission / reception section 305 and asynchronous transmission / reception section 304 and output. Reference numeral 302 denotes a PHY, which is a physical layer conforming to IEEE 1394, IEEE 802.3, USB standard, HDMI standard, IEEE 802.11, UWB, or the like, and is connected to a bus to which an external television receiver 1 (not shown) is connected. You. Reference numeral 314 denotes a node identification information memory which stores a node number for identifying the DVD recorder / player 301 among devices connected to the bus and a node number of the television receiver 1 (not shown) connected to the bus. It is remembered. The node number of the device connected to the bus can be received from the asynchronous transmission / reception unit 304 or the like at the time of bus configuration, and the microcomputer 320 transmits the node number of the DVD recorder / player 301 itself or the node number of the television receiver 1 or the like. Can be read and recognized. The association between the television receiver 1 and the DVD recorder / player 301 connected to the bus and the node number is possible because information indicating the attribute of the device can be obtained from each node via the receiving unit under the control of the microcomputer 320. It is. A channel identification information memory 315 stores information for identifying a transmission channel secured between the DVD recorder / player 301 and the television receiver 1 (not shown). For example, when transmitting video and audio data and BML data / program related information in a synchronization packet using the TS transmission / reception unit of the interface device 317, the isochronous protocol secures a logical channel between nodes when transmitting each synchronization packet. For this purpose, the microcomputer 320 can recognize the channel number secured between the television receivers 1 (not shown). Reference numeral 354 denotes a command format memory which stores a command format indicating association between video information of a recorded program, audio information of the recorded program, and a transmission channel, which will be described later with reference to FIG. 10 or FIG.

  Note that, in the configuration, a receiving unit for receiving analog television broadcasting, a demodulation unit, and an MPEG-2 encoder may be newly provided to convert analog television broadcasting into TS and record it on the DVD disk 324. Also, the case where a received program is received from a broadcast wave has been described. However, instead of the antenna 337, a broadband router connected to a network such as the Internet is installed, and the receiving unit D335 selects and receives from the network by an address on the network. It is also conceivable.

  Further, the TS decoder A 327 and the TS decoder B 340 may be integrated in the same TS decoder.

  The BML may be in another document format such as HTML or XML. The DVD disk 324 may be another recording device such as a red laser compatible DVD or HDD. In that case, the TS decoder B 340, the sub-picture decoder 330, and the MPEG-2 decoder 346 can also support a program stream, and the TS decoder A 327 can convert a TS into a program stream.

  In addition, although the example in which the TS interface, the YUV interface, and the LR interface are provided in the same interface device 317 has been described, the interfaces and the related transmission / reception units are provided with separate LINKs and interfaces having physical layers corresponding to the television receiver 1. May be divided. For example, a TS interface 309, a TS transmission / reception unit 306, a microcomputer interface 312, an asynchronous transmission / reception unit 304, a node identification information memory 314, and a channel identification information memory 315 are provided in an IEEE 1394 interface, a USB interface, an IEEE 802.3 interface, a YUV interface 310, an LR The interface 311, the YUV receiver 307, and the LR receiver 308 may be provided in an HDMI interface or an analog video / audio interface. In the case of the analog interface, the LINK 29 and the asynchronous protocol are not required, but a DAC is arranged at a stage preceding the YUV interface 310 and the LR interface 311.

  Next, the operation of the first embodiment will be described with reference to the drawings. The transmission of the video, audio and BML data / program related information between the television receiver 1 and the DVD recorder / player 3 of the present invention can be performed by a single interface using the uncompressed video / audio and the compressed BML data / program. Transmission is possible by dividing the transmission channel into related information and transmission through two interfaces: an interface for video and audio in uncompressed format and an interface for BML data / program related information in compressed format. It is. Further, as a transmission format of the BML data / program related information, a compression format, an uncompression format, or an asynchronous packet format can be selected according to an interface or a channel to be transmitted. Both of the microcomputers can recognize the transmission form and the transmission format when the user previously sets the connection form and the transmission format between the television receiver 1 and the DVD recorder / player 3 in advance. Both microcomputers execute optimal control for the connection mode. The following description shows the operation in each connection mode and the control method of the microcomputer.

  A first example in which the television receiver 1 displays a program reproduced by the DVD recorder / player 301 will be described with reference to FIGS. 2, 14 and 16. FIG. 2 shows the video and audio of the recorded program transmitted by the DVD recorder / player 301 when the television receiver 1 displays it. FIGS. 14 and 16 show the DVD recorder / player 301 reproducing the recorded program and outputting the video and audio. This is an operation example when performing the operation. In this example, the interface between the television receiver 1 and the DVD recorder / player 301 is unified and connected, and the operation when the transmission format of the BML data / program related information is TS will be described. In FIG. 2, when the user first performs an operation to instruct reproduction of the DVD recorder / player 301 using the reproduction key 42 of the remote control 34 of the television receiver 1 (STEP 1), the microcomputer 16 The signal is interpreted to generate a playback command, and an asynchronous packet storing the playback command is transmitted to the DVD recorder / player 301 using the asynchronous transmission / reception unit 30 of the interface device 18 (STEP 2). Next, the microcomputer 16 waits for reception of a packet storing data indicating the association between the video and audio relating to the program to be reproduced and the BML data / program related information and the transmission channel, which are returned from the DVD recorder / player 301 ( (STEP 3). In FIG. 14, the DVD recorder / player 301 receives the command transmitted in STEP 2 using the asynchronous transmission / reception unit 304, and the microcomputer 320 interprets the reproduction command. (STEP 201) The microcomputer 320 searches the data stored in the program index memory 329, confirms the start position of the program to be reproduced, and prepares for reproduction. In this case, the program to be reproduced may be the program recorded immediately before or the program specified in the command received in STEP 201 (STEP 202). The microcomputer 320 reads the resolution information and audio format information of the video related to the program to be reproduced stored in the program index memory 329, estimates the bandwidth of the uncompressed signal after decoding the video and audio, and The transmission channels for securing the necessary bands for transmitting the video and audio of the uncompressed signal to the television receiver 1 are obtained (STEP 203). The microcomputer 320 also estimates the transmission band required for the TS packet storing the program-related information and the BML data from the resolution information, and transmits the TS stream storing the program-related information and the BML data to the television receiver 1. Acquire a transmission channel that secures the bandwidth required for. It is conceivable in the isochronous protocol that the band and the channel are obtained from a master node that manages the channel and the band (not shown) (STEP 204). Under the control of the microcomputer 320, the servo controller 325 and the reproduction signal processing unit 345 read out the program recorded on the DVD disk 324 from the start position and output it. Under the control of the microcomputer 320, the TS decoder B 340 extracts the MPEG-2 elementary stream of video and audio and sub-picture data, outputs them to the MPEG-2 decoder 346 and the sub-picture decoder 330, and outputs the packet of the BML data and the program-related information. Is extracted and the packet is output to the interface device 317, and the BML data and the program-related information are output to the microcomputer 320 (STEP 205).

  Here, the operation of the TS decoder B 340 when outputting the BML data and the packet of the program-related information to the interface device 317 will be described with reference to FIG. FIG. 22 shows an operation of extracting the BML data of the program A, which is the program to be reproduced from the TS input by the TS decoder B 340, and the packet of the program-related information. The horizontal direction in FIG. 22 is time. The program A (video) is a TS packet storing an elementary stream of the video of the program A, and the program A (audio) is a TS packet storing an elementary stream of the audio of the program A. The program A (BML) is a TS packet storing BML data of a data broadcast related to the program A. The SIT is a TS packet storing program-related information of a recorded program. Is inserted using the TS decoder A327 under the control of the microcomputer 320 when recording the program, and is inserted using the insertion unit 25 under the control of the microcomputer 16 when recording the program received by the television receiver 1. There are cases. Program B is a TS packet of a program different from the reproduced program. The TS decoder B 340 has a PID filtering function, sets the PID of a TS packet to be output to the interface device 317 under the control of the microcomputer 320, and outputs only the TS packet to the interface device 317. In this case, the PID of the program A (BML) and the PID of the SIT are set, and other TS packets having other PIDs are filtered. The description of FIG. 22 ends.

  In FIG. 14, the MPEG-2 decoder 346 and the sub-picture decoder 330 respectively decode and generate a YUV signal and an LR signal (STEP 206). The microcomputer 320 stores the decoded and combined YUV signal and LR signal in a synchronization packet by using the YUV transmission unit 307 and the LR transmission unit 308 of the interface device 317, and transmits the acquired signal to the television receiver 1 via the channels respectively acquired. Control (STEP 207). On the other hand, the microcomputer 320, as shown in FIG. 16, is used by the microcomputer 320 to associate the video and audio of the program to be reproduced in parallel and the respective transmission channels acquired for transmitting program-related information and BML data as described later. Is generated, stored in an asynchronous packet using the asynchronous transmission / reception unit 304, and transmitted to the television receiver 1 (STEP 221).

  An example of an asynchronous packet for transmitting the association of each transmission channel described above in STEP 221 and the like will be described in detail with reference to FIGS. FIG. 10 is a diagram showing a configuration of an asynchronous packet in the asynchronous protocol. The horizontal direction indicates a 32-bit data row, and the vertical direction indicates a continuation of the data rows. The upper three rows show the header area in the packet, and the lower three rows show the data area. The transmission destination ID is a field storing a transmission destination node number, the packet type identification information is a field storing information indicating that this packet is an asynchronous packet, and the transmission source ID is a transmission source ID. The reserved area is an unused field for future expansion, and the header CRC is a field in which CRC data of the above field is stored. The above is the header for the asynchronous packet.

  Hereinafter, the data area will be described. The video channel is a field indicating a logical channel on which video is transmitted, the audio channel is a field indicating a logical channel on a bus through which audio is transmitted, and a BML / related information channel. Is a field indicating a logical channel on the bus through which BML or program-related information is transmitted. The data area is a field for storing other data. The data CRC stores CRC data of the entire asynchronous packet. Field. Here, the microcomputer 320 of the DVD recorder / player 301 stores information indicating the association between the video, audio, BML data, program-related information, and the transmission channel associated with the program to be reproduced during reproduction in these fields, and Send to 1. As data to be stored, for example, when all information is received from the same interface in the same transmission format, only the respective channel identification information is stored. Alternatively, when receiving from different interfaces, information for identifying each interface and format and channel identification information for the interface may be stored. The information of the transmission destination ID and the transmission source ID is used for associating the node number of the DVD recorder / player 301 with the node number of the television receiver 1.

  FIG. 11 also shows the configuration of an asynchronous packet similar to that of FIG. 10, but FIG. 11 differs from FIG. In this case, BML data and program-related information are stored in addition to the data area. In the configuration of the asynchronous packet shown in FIGS. 10 and 11, the field indicating each channel does not need to be at the beginning of the data area, and may be, for example, at the end or middle, or is a reserved area in the data area. Is also good. The description of FIGS. 10 and 11 is finished.

  In FIG. 16, the microcomputer 320 stores the packet of the BML data and the program-related information extracted in STEP 205 in a synchronization packet using the TS transmitting / receiving unit 306 of the interface device 317, and transmits the channel acquired in STEP 204 to the television receiver 1. Is controlled to be transmitted via the Internet (STEP 222).

  The multiplexing mode of the transmission packet on the bus will be described with reference to FIG. The horizontal axis in FIG. 23 is time, and the upper right figure and the lower left figure are temporally connected. On the bus, synchronization timing at a predetermined time interval defined in advance is given by a cycle start packet, and FIG. 23 shows the two cycles. A is a synchronization packet to which a YUV signal in an uncompressed format is stored and a header for the synchronization packet is added, a transmission channel is provided, and a transmission band in each cycle is guaranteed. B is a synchronization packet in which an LR signal in an uncompressed format is stored and a header for the synchronization packet is added, a transmission channel is provided, and a transmission band for each cycle is guaranteed. OP is a synchronization packet in which a TS composed of BML data O and program-related information P is stored and a header for the synchronization packet is added, a transmission channel is provided, and a transmission band in each cycle is guaranteed. . C is an asynchronous packet that stores the video and audio of the program to be reproduced, the data related to the respective channels acquired for transmitting the program-related information, and the BML data, and to which an asynchronous packet header is added. C, which is an asynchronous packet, does not have a transmission channel and is not necessarily transmitted every cycle. These packets are multiplexed on the time axis and transmitted to the same bus. For example, video and audio are stored in a synchronous packet in an uncompressed format, and BML data and program-related information in the form of an MPEG-2 TS packet are stored in an asynchronous packet. A case where transmission is performed from an IEEE 802.11 interface or a UWB interface is considered. The description of FIG. 23 ends.

  In FIG. 2, the television receiver 1 thereafter receives an asynchronous packet storing data indicating the association of each channel acquired for transmitting video, audio, program-related information, and BML data, and the microcomputer 16 reproduces the packet. The association between the video, audio, BML data, and related information related to the program to be performed and the transmission channel are recognized (STEP 4). When the YUV receiver 27 or the LR receiver 28 receives the video and audio synchronization packets transmitted in STEP 207 (STEP 5), the microcomputer 16 confirms that the transmission channel is the channel for transmitting the video and audio recognized in STEP 4. Then, it recognizes the video and audio of the reproduced program, switches the video switch 9 and the audio switch 12 to the interface device 18 side (STEP 6), and controls to display the received video and audio (STEP 7). Note that a command for requesting an asynchronous packet indicating the association between video and audio under the control of the microcomputer 16 may be transmitted to the DVD recorder / player 301 in STEP2.

  As can be seen from the above description, in this example, in the microcomputer 320 of the DVD recorder / player 301, the program-related information and the BML data are not decoded but transmitted in a compressed format.

Next, a second example in which the television receiver 1 displays a program reproduced by the DVD recorder / player 301 will be described with reference to FIGS. 3, 15, and 16. FIG. 3 shows an example when the television receiver 1 displays the video and audio output from the DVD recorder / player 301, and FIGS. 15 and 16 show an example when the DVD recorder / player 301 reproduces the video and audio.
In this example, the interface between the television receiver 1 and the DVD recorder / player 301 is divided into two and connected, and the operation when the transmission format of the BML data / program related information is TS will be described. For example, the TS interfaces 19 and 309, the insertion unit 25, the TS transmission and reception units 26 and 306, the microcomputer interfaces 22 and 312, the asynchronous transmission and reception units 30, 304, and the program-related information memory 23 in the television receiver 1 and the DVD recorder / player 301, The node identification information memories 32 and 314 and the channel identification information memories 36 and 315 are provided in the IEEE 1394 interface device, the USB interface device, or the IEEE 802.3 interface device, and the YUV interfaces 20, 310, the LR interfaces 21, 311, the YUV receiving unit 27, 307, the LR receiving units 28, 308 are provided in another HDMI interface device, or the YUV interfaces 20, 310, the LR interface 21, 11 illustrating a case provided in the analog video / audio interface. In FIG. 15, when the user performs a reproduction operation of a recorded program using the remote controller 318 of the DVD recorder / player 301, the microcomputer 320 interprets the reproduction operation (STEP 211). The microcomputer 320 searches the data stored in the program index memory 329, confirms the reading start position of the program, and prepares for reproduction (STEP 212). The microcomputer 320 reads the resolution information and the audio format information stored in the program index memory 329, estimates the necessary transmission band of the TS packet storing the program-related information and the BML data based on the resolution information, and To transmit a TS storing information and BML data to the television receiver 1, a transmission channel for securing a band is acquired. It is conceivable that the band and the channel are obtained from a master node that manages the channel and the band (not shown). The bandwidth of the TS stream can be estimated to be less than that based on the bit rate information at the time of recording (STEP 214). Under the control of the microcomputer 320, the servo controller 325 and the reproduction signal processing unit 345 read and output the program recorded on the DVD disk 324 from the start position of the reproduction program. Under the control of the microcomputer 320, the TS decoder B340 extracts an MPEG-2 elementary stream of video and audio and sub-picture data, and outputs them to the MPEG-2 decoder 346 and the sub-picture decoder 330. Then, the TS decoder B 340 extracts the TS packet storing the BML data and the program-related information and the stored BML data and program-related information, and outputs the TS packet to the interface device 317. Then, the data is output to the microcomputer 320 (STEP 215). The MPEG-2 decoder 346 and the sub-picture decoder 330 respectively decode and generate a YUV signal and an LR signal (STEP 216). The microcomputer 320 uses the YUV transmission unit 307 and the LR transmission unit 308 of the interface device 317 having an HDMI physical layer to decode and synthesize the YUV signal and the LR signal, or an analog video / audio interface. 1 (STEP 217).

  In FIG. 3, the microcomputer 16 of the television receiver 1 recognizes that the DVD recorder / player 301 has shifted to the reproduction state by using the asynchronous transmission / reception unit 30 (STEP 11). In IEEE 1394 and the like, a command for reading a node state using an asynchronous packet and a command for notifying the state are standardized, and can be recognized using the command. Next, the microcomputer 16 generates a command for inquiring the DVD recorder / player 301 of the association between the video, audio, BML data, program-related information, and the transmission channel related to the program to be reproduced. / Send to player 301 (STEP 12). The microcomputer waits for a reply with an asynchronous packet (STEP 13).

  In FIG. 16, in the DVD recorder / player 301, the asynchronous receiver 304 receives an asynchronous packet storing a command for inquiring a transmission channel of video, audio, BML data, and program-related information transmitted from the television receiver 1. Thereafter, the microcomputer 320 interprets the command, and the microcomputer 320 generates data for associating each of the transmission channels acquired for transmitting the video and audio of the program to be reproduced and the program-related information and the BML data. Is transmitted to the television receiver 1 using (step 221). In this example, for video and audio, information for identifying the HDMI interface or the analog video / audio interface is stored. By determining this information in advance, the television receiver 1 can recognize the information. Further, the microcomputer 320 stores the packet of the BML data and the program related information extracted in STEP 216 in a synchronization packet using the TS transmitting / receiving section 306 of the interface device 317, and transmits the IEEE 1394 interface from the transmission channel acquired by the television receiver 1 respectively. Is controlled to be transmitted via the Internet (STEP 222).

  In FIG. 3, after receiving the asynchronous packet transmitted in STEP 221, the television receiver 1 recognizes a transmission channel of video, audio, BML data, and program-related information related to the program (STEP 14). In accordance with the recognition in STEP 14, the television receiver 1 inputs video and audio in an uncompressed format from an HDMI interface or an analog interface. The microcomputer 16 switches the video switch 9 and the audio switch 12 to the interface device 18 having an HDMI physical layer or the analog interface so that the BML data and the program-related information are received as MPEG-2 TS packets from the IEEE1394 interface. Then, preparation is made for reception of BML data and program-related information from another interface device 18 having the IEEE 1394 physical layer (STEP 16). Also, control is performed to display the video and audio received from the HDMI interface device 18 (STEP 17).

  As can be seen from the above description, in this example, in the microcomputer 320 of the DVD recorder / player 301, the program-related information and the BML data are not decoded but transmitted in a compressed format.

  Next, a first example in which the television receiver 1 displays a data broadcast screen and program-related information of a program reproduced by the DVD recorder / player 301 will be described with reference to FIG. This is a configuration in which the interface between the television receiver 1 and the DVD recorder / player 301 is unified, and the transmission format of BML data / program related information is an example in the case of TS. The operation when the BML data and the program related information transmitted in STEP 222 are received by the TS transmitting / receiving unit 26 will be described (STEP 21). The transmission channel in this case can be recognized by the asynchronous packet received in STEP 3 or STEP 13 described above with reference to FIGS. When the user presses the d key 47 of the remote controller 34 of the television receiver 1 after STEP 6 or STEP 16 to give an instruction to display a data broadcast (STEP 22), the microcomputer 16 interprets the instruction, and in STEP 21, the microcomputer 16 interprets the instruction. The BML data received from the TS interface 19 is input using the TS decoder 7, the BML definition file is interpreted, the decoding is performed according to the definition, and the control for drawing the first screen of the data broadcast in the buffer memory 17 is performed. Do.

  Next, the microcomputer 16 performs control for converting the data of the first screen of the data broadcast drawn using the OSD controller 46 into pixel data and displaying the data. If the definition file indicates a video scaling instruction, the microcomputer 16 converts the video data received in the uncompressed format in STEP 5 or STEP 15 using the YUV scaling unit 48 in accordance with the definition file instruction. A scaling process is performed, and control is performed so as to be combined with the first screen of the data broadcast and displayed in STEP7 and SYEP17.

  If the definition file indicates an instruction to output a sound effect, the microcomputer 16 outputs the sound effect generated using the AV decoder 8 to the audio data received in the uncompressed format in STEP 5 or STEP 15 and outputs the sound effect in STEP 7 or STEP 17. Is controlled so as to be synthesized and output using the voice synthesis unit 49 (STEP 23). After that, the user can operate the data broadcasting screen to perform page turning using the remote controller 34. However, when the user presses the d key 47 of the remote controller 34 and instructs to stop displaying the data broadcasting screen (STEP 24), the microcomputer 16 controls the end of decoding and display of the data broadcast screen, scaling of video, and generation and synthesis of sound effects (STEP 28). On the other hand, if the user presses the program information display key 43 of the remote controller 34 to give an instruction to display program-related information after STEP 6 or STEP 16 (STEP 25), the microcomputer 16 interprets the instruction, and in STEP 21, the TS of the interface device 18 The program-related information received from the interface 19 is input by using the TS decoder 7, the contents of the information are interpreted, and control for drawing the program-related information in the buffer memory 17 in a predetermined format is performed. Next, the microcomputer 16 performs control for converting the drawing data into pixel data and displaying the converted data using the OSD controller (STEP 26). Thereafter, the user can use the remote controller 34 to scroll the display screen of the program-related information. However, when the user presses the return key 44 of the remote controller 34 to give an instruction to stop the display of the program-related information (STEP 27), the microcomputer 16 Controls the end of the display of the program-related information (STEP 29).

  As can be understood from the above description, in this example, the microcomputer 16 of the television receiver 1 decodes the program-related information and the BML data.

  Next, a second example of displaying program-related information of a program to be reproduced will be described with reference to FIGS. The interface between the television receiver 1 and the DVD recorder / player 301 is unified, and the transmission format of the program-related information is an example of an asynchronous packet.

  5 shows an example in which the television receiver 1 displays the program-related information transmitted by the DVD recorder / player 301, and FIG. 17 shows an example in which the DVD recorder / player 301 transmits the program-related information. In this example, the asynchronous transmitter / receiver 30 receives video and audio data received by the television receiver 1 in an uncompressed format and program-related information from another transmission channel. In FIG. 5 after STEP 6 or STEP 16, the user operates the program information display key 43 of the remote control 34 of the television receiver 1 to display the program-related information relating to the video / audio in the uncompressed format received from the DVD recorder / player 301. When the instruction is pressed (STEP 31), the microcomputer 16 interprets the instruction, generates a command for requesting transmission of program-related information related to video / audio currently received in the non-compressed format, and uses the asynchronous transmission / reception unit 30. The packet is asynchronously transmitted and transmitted to the DVD recorder / player 301. By storing the information in the asynchronous packet together with the information specifying the video and audio channels as shown in FIGS. 10 and 11, and transmitting the information, the DVD recorder / player 301 is also notified of the association between the desired program-related information and the reproduced program. (STEP 32). After that, it waits for a reply (STEP 33).

  In FIG. 17, the DVD recorder / player 301 receives the asynchronous packet transmitted in STEP 32 by using the asynchronous transmission / reception unit 304, and the microcomputer 320 issues a command to request transmission of program-related information related to video / audio. Then, the association between the desired program-related information and the reproduced program is interpreted (STEP 231). The microcomputer 320 reads out the program-related information of the program being reproduced from the program-related information memory 328, and uses the asynchronous transmission / reception unit 304 to show the information relating the video, the audio, and the transmission channel and the program-related information, as shown in FIGS. It is controlled so as to be stored in such an asynchronous packet and returned to the television receiver 1 (STEP 232).

  In FIG. 5, when the asynchronous packet returned from the DVD recorder / player 301 in STEP 232 is received (STEP 33), the microcomputer 16 checks the association with the received video / audio, but recognizes it in STEP 4 or STEP 14 first. Update the association of program-related information. After the confirmation, the microcomputer 16 reads out the program-related information stored in the asynchronous packet received in STEP 33 by using the asynchronous transmission / reception unit 30, recognizes the content, and performs control to display the information using the OSD controller 46 (STEP 34). Thereafter, the user can scroll the display screen of the program-related information by using the remote controller 34. However, when the user presses the return key 44 of the remote controller 34 to give an instruction to stop the display of the program-related information (STEP 35), the microcomputer 16 Controls the termination of the display of the program-related information (STEP 36).

  As can be understood from the above description, in this example, the program-related information is decoded in the microcomputer 16 of the television receiver 1. In the microcomputer 320 of the DVD recorder / player 301, the program-related information is not decoded.

  Next, a third example of displaying program-related information of a program to be reproduced will be described with reference to FIGS. This is a configuration in which the interface between the television receiver 1 and the DVD recorder / player 301 is unified, and the transmission format of the BML data / program related information is an example in the case of an uncompressed format. FIG. 6 shows an example when the television receiver 1 displays the program-related information transmitted by the DVD recorder / player 301, and FIG. 18 shows an example when the DVD recorder / player 301 transmits the program-related information. In this example, the YUV receiver 27 receives program-related information from the same transmission channel as video and audio data received in an uncompressed format. For example, a case where video and audio are received via an HDMI interface or an analog video / audio interface is also conceivable.

  In FIG. 6, when the user instructs the display of the program-related information relating to the video / audio received in the non-compressed format by using the remote control 34 of the television receiver 1 by pressing the program information display key 43 of the remote control 34 (STEP 41). The microcomputer 16 interprets the instruction, generates a command for requesting display of program-related information related to video / audio received in an uncompressed format in STEP5 or STEP15, and converts the command into an asynchronous packet using the asynchronous transmitting / receiving unit 30. To the DVD recorder / player 301. By transmitting an asynchronous packet specifying a video or audio channel as shown in FIGS. 10 and 11, the association between desired program-related information and a reproduced program can also be notified to the DVD recorder / player 301 (STEP 42).

  In FIG. 18, the DVD recorder / player 301 receives a command for requesting display of program-related information and data associated with the command using the asynchronous transmission / reception unit 304, and the microcomputer 320 transmits a command for requesting transmission of program-related information related to video / audio. And the association between the desired program-related information and the reproduced program is interpreted (STEP 241). The microcomputer 320 reads out the program-related information of the program being reproduced from the program-related information memory 328, and controls the OSD controller 353 and the image synthesizing unit 347 to synthesize the image and transmit the image (STEP 242). Thereafter, the user uses the remote controller 34 to scroll the display screen of the program-related information while watching the program-related information, and transmits an asynchronous packet storing operation commands to the DVD recorder / player 301 under the control of the microcomputer 16 in the same manner as in STEP 42. However, when the return key 44 of the remote controller 34 is pressed to give an instruction to stop the display of the program-related information (STEP 44), the microcomputer 16 issues a command to end the display of the program-related information similarly to STEP 42. The stored asynchronous packet is transmitted to the DVD recorder / player 301 (STEP 36). The DVD recorder / player 301 receives the command for requesting to end the display of the program-related information and the data associated therewith, and the microcomputer 320 recognizes the request to end the display of the program-related information of the program being reproduced (STEP 243). The transmission of the program-related information screen is controlled to end (STEP 244).

  As can be seen from the above description, in this example, the microcomputer 16 of the television receiver 1 does not decode the program-related information. In the myco 320 of the DVD recorder / player 301, the program-related information is decoded.

  Next, a first example of displaying a data broadcast screen relating to a program to be reproduced will be described with reference to FIGS. This is a configuration in which the interface between the television receiver 1 and the DVD recorder / player 301 is divided into two, and the transmission format of BML data / program related information is an example in the case of an asynchronous packet. 7 shows an example when the television receiver 1 displays BML data of a data broadcast transmitted by the DVD recorder / player 301, and FIG. 19 shows an example when the DVD recorder / player 301 transmits BML data. In this example, the television receiver 1 receives the BML data in an uncompressed format, video and audio data, and the asynchronous transmission / reception unit 30 from another transmission channel.

  In FIG. 7, when the user presses the d key 47 of the remote controller 34 to instruct the display of the data broadcast related to the video / audio received in the non-compressed format using the remote controller 34 of the television receiver 1 (STEP 51), the microcomputer 16 Interprets the instruction, generates a command for requesting transmission of BML data constituting data broadcast related to video / audio currently received in an uncompressed format, and converts the command into asynchronous packets using the asynchronous transmitting / receiving unit 30. Transmit to the DVD recorder / player 301. By transmitting the asynchronous packet specifying the video and audio channels as shown in FIGS. 10 and 11, the association between the desired BML data and the reproduced program can also be notified to the DVD recorder / player 301 (STEP 52). After that, it waits for a reply (STEP 53).

  In FIG. 19, the DVD recorder / player 301 receives the asynchronous packet transmitted in STEP 52 using the asynchronous transmission / reception unit 304, and the microcomputer 320 recognizes a command for requesting transmission of BML data related to video / audio, and The association between the desired BML data and the reproduced program is interpreted (STEP 251). The microcomputer 320 inputs the BML data relating to the program being reproduced in STEP 205 from the TS decoder B 340 and stores the BML data in the buffer memory 321. As shown in FIG. 10 and FIG. 11, control is performed so as to make an asynchronous packet and return it to the television receiver 1 using STEP 304 (STEP 252).

  In FIG. 7, when the television receiver 1 receives the asynchronous packet returned from the DVD recorder / player 301 in STEP 252 (STEP 53), the microcomputer 16 checks the association with the received video / audio. The association previously recognized in STEP 4 or STEP 14 is updated. After confirming the association, the microcomputer 16 reads out the stored BML data by using the asynchronous transmission / reception unit 30, interprets the BML definition file, performs decoding according to the definition, and displays the first screen of the data broadcast in the buffer memory 17. The drawing is controlled (STEP 54). Next, the microcomputer 16 uses the OSD controller 46 to control the drawing data in STEP 54 to be converted into pixel data and displayed. If the definition file indicates a video scaling instruction, the microcomputer 16 converts the video data received in the uncompressed format in STEP 5 or STEP 15 by using the YUV scaling unit 48 in accordance with the definition file instruction. Processing is performed, and control is performed so as to be synthesized with the first screen of the data broadcast and displayed. If an instruction to output a sound effect is given in the definition file, the microcomputer 16 outputs the sound effect generated using the AV decoder 8 to the sound data received in the uncompressed format in STEP 5 or STEP 15 and outputs the sound effect to the sound synthesis unit. Control is performed so as to combine and output the images by using 49 (STEP 55). Thereafter, the user can operate the data broadcast screen using the remote controller 34 to perform page turning or the like. However, when the user presses the d key 47 of the remote controller 34 to give an instruction to stop displaying the data broadcast screen (STEP 56), the microcomputer 16 ends decoding and display of the data broadcast screen, scaling of the video, and generation and synthesis of the sound effect (STEP 57).

  As can be understood from the above description, in this example, the BML data is decoded in the microcomputer 16 of the television receiver 1. In the myco 320 of the DVD recorder / player 301, the BML data is not decoded.

  Next, a second example of displaying a data broadcast related to a program to be reproduced will be described with reference to FIGS. This is a configuration in which the interface between the television receiver 1 and the DVD recorder / player 301 is unified, and the transmission format of the BML data / program related information is an example in the case of an uncompressed format. 8 shows an example when the television receiver 1 displays a data broadcast screen transmitted by the DVD recorder / player 301, and FIG. 20 shows an example when the DVD recorder / player 301 transmits a data broadcast screen. In this example, the television receiver 1 receives the decoded screen of the data broadcast in the uncompressed format from the same transmission channel as the video and audio data received by the YUV receiver 27 and the LR receiver 28. For example, reception from an HDMI interface or an analog video / audio interface may be considered.

  In FIG. 8, when the user presses the d key 47 of the remote control 34 of the television receiver to instruct the display of the data broadcast related to the video / audio received in the uncompressed format (STEP 61), the microcomputer 16 interprets the instruction, A command for requesting the display of the first screen of the data broadcast related to the video / audio currently received in the non-compressed format is generated, asynchronously packetized using the asynchronous transmission / reception unit 30, and transmitted to the DVD recorder / player 301. The association between the desired data broadcast screen and the reproduced program may be notified to the DVD recorder / player 301 by transmitting an asynchronous packet specifying the video or audio channel as shown in FIGS. 10 and 11 (STEP 62). . The microcomputer 16 controls the points included in the broadcaster-specific information stored in the NVRAM 52 obtained by the user receiving data broadcasts, other quiz programs, prize programs, and the like received by the television receiver 1 in the past. Or the right is read out, stored in an asynchronous packet using the asynchronous transmission / reception unit 30, and transmitted to the DVD recorder / player 301 (STEP 63).

  In FIG. 20, the DVD recorder / player 301 receives the packet transmitted in STEP 63 using the asynchronous transmission / reception unit 304. By using the data of the unique information for each broadcaster in the NVRAM 52 of the television receiver 1 stored in the packet, even when the recorded program is reproduced, the user may have previously received the television broadcast when decoding the data broadcast. The points and rights acquired at the time of reception using the receiver 1 can be applied.

  Also, the DVD recorder / player 301 receives the command and the data associated with the display request for displaying the data broadcast screen transmitted in STEP 62 using the asynchronous transmitting / receiving section 304, and displays the data broadcast screen of the program being reproduced in STEP 205 or STEP 215. It is recognized as a display request (STEP 261). The microcomputer 320 inputs a BML definition file and BML data relating to the program being reproduced from the TS decoder B340, interprets the definition file, performs decoding according to the definition by the microcomputer 320, and receives the television reception received in STEP 261. The data content of the NVRAM 52 of the device 1 is applied, and the first screen of the data broadcast is synthesized with the video of the program being reproduced by controlling the OSD controller 353 and the video synthesizing unit 347 in the format indicated by the BML definition file.

  If the definition file indicates a video scaling instruction, the microcomputer 320 performs scaling processing according to the definition file instruction using the MPEG-2 decoder 346 on the video data to be decoded in STEP 206 or STEP 216. The control is performed so as to be synthesized with the first screen of the data broadcast and displayed.

  If the definition file indicates an instruction to output a sound effect, the microcomputer 320 combines the sound data to be decoded in STEP 206 or STEP 216 with the sound effect generated by using the MPEG-2 decoder 346 and outputs the synthesized sound effect. (STEP 262). The microcomputer 320 writes the unique information data for each broadcaster in the NVRAM 52 of the television receiver 1 received in STEP 261 into the NVRAM 352 and updates the data (STEP 263). Thereafter, the user can operate the data broadcast screen by using the remote controller 34 and perform page turning and the like by transmitting an asynchronous packet containing an operation command to the DVD recorder / player 301 under the control of the microcomputer 16 in the same manner as in STEP 62. When the user presses the d key 47 of the remote controller 34 to instruct the display of the data broadcast screen synthesized in STEP 262 to be stopped (STEP 64), the microcomputer 16 issues a command to end the display of the data broadcast in the same manner as in STEP 62. The stored asynchronous packet is transmitted to the DVD recorder / player 301 (STEP 65).

  20, the DVD recorder / player 301 receives a command for requesting end of display of a data broadcast screen and data associated with the command using the asynchronous transmission / reception unit 304, and the microcomputer 320 interprets the data (STEP 264) and performs data broadcast in STEP 262. The decoding and display of the screen, the scaling of the image, and the generation and synthesis of sound effects are completed. Also, the microcomputer 320 transmits the data of the NVRAM 352 of the DVD recorder / player 301 to the television receiver 1 in an asynchronous packet so that the points and rights newly acquired by the user at the time of reproducing the program are applied to the television receiver 1. It transmits (STEP 265).

  In FIG. 8, the television receiver 1 receives an asynchronous packet storing point and right data recorded in the NVRAM of the DVD recorder / player 301 (STEP 66), and the microcomputer 16 transmits the received point and right data. Is used to update data stored in the NVRAM 52 (STEP 67). Therefore, even when the data broadcast of the program stored in the DVD recorder / player 301 is decoded by the DVD recorder / player 301, the points and rights acquired at the time of reproduction are obtained by the broadcaster-specific information of the television receiver 1 for each broadcaster. Can be added and stored.

  As can be understood from the above description, in this example, the BML data is not decoded in the microcomputer 16 of the television receiver 1. In the myco 320 of the DVD recorder / player 301, the BML data is decoded.

  FIGS. 9 and 21 show a first example when the display of the video and audio of the program being reproduced is ended. FIG. 9 shows an example when the television receiver 1 ends the display, and FIG. 21 shows an example when the DVD recorder / player 301 ends the reproduction of the program.

  In FIG. 9, when the user performs an operation of instructing the reproduction stop of the DVD recorder / player 301 using the stop key 41 of the remote control 34 of the television receiver 1 (STEP 71), the microcomputer 16 outputs a signal from the light receiving unit 39. Is interpreted to generate a playback stop command, and an asynchronous packet storing the playback stop command is transmitted to the DVD recorder / player 301 using the asynchronous transmission / reception unit 30 of the interface device 18 (STEP 72). The microcomputer 16 can also notify the DVD recorder / player 301 of the association with the desired reproduction stop by transmitting the asynchronous packet specifying the video or audio channel as shown in FIGS.

  In FIG. 21, the DVD recorder / player 301 receives a command for stopping playback and data associated with the command using the asynchronous transmission / reception unit 304 (STEP 271), and the microcomputer 320 ends the playback of the program and the transmission of the packet (STEP 272). The microcomputer 16 ends the display of the image and the output of the sound (STEP 73).

  As described above, the display device and the playback device of the present invention and the interface device used for them are provided with program-related information or data in a program played by a playback device such as a DVD player by operating a remote control of a display device such as a television receiver. It is possible to control so as to acquire the BML data of the broadcast screen, and to display and operate the program-related information or the data broadcast screen by decoding the remote control of the display device.

  In addition, by operating a remote control of a display device such as a television receiver, it is possible to transmit program-related information on a program played by a playback device such as a DVD player or an instruction to display or operate a data broadcast screen to the playback device, Since the playback device can display and operate the corresponding data broadcast screen upon receiving the instruction, the display and operation of the program-related information or the data broadcast screen can be performed with the remote control of the display device.

  In particular, when outputting a data broadcast screen related to a program to be reproduced by the playback device, the broadcaster-specific information stored in the display device can be transmitted to the playback device. It is possible to receive the unique information for each broadcaster and apply the information when outputting the data broadcast screen, or update the unique information for each broadcaster of the playback device.

  In addition, a television receiver or the like as a display device and a DVD recorder / player as a playback device can be connected by one or two kinds of communication standards. For UWB or wired connection, only one kind of cable such as IEEE1394 or two kinds of cables including an HDMI cable can be used.

  The display device and the playback device according to the present invention and the interface device used for them solve the problem of the inconvenience of operating using the remote control of both the display device and the playback device. In addition, it is possible to solve the problem of inconvenience that a user cannot apply points and rights acquired when a user receives a data broadcast using a television receiver in reproducing the data broadcast. In addition, it is possible to solve the problem that it is not possible to connect wirelessly with a single communication standard, and that the connection between devices becomes complicated because it is necessary to use at least three types of cables even for wired transmission. And a display device having a display function such as a television broadcast receiver, a personal computer, a mobile phone, or a personal digital assistant, and a recording device such as a DVD player, a CD player, or an HDD player. The present invention is useful as a reproducing apparatus for reproducing and outputting a program and the like, and a reproducing apparatus for recording and reproducing and outputting a program and the like on a recording medium such as a DVD recorder, a CD recorder, and an HDD recorder.

1 is a block diagram of a display device according to a first embodiment of the present invention. First operation flowchart in Embodiment 1 of display device of the present invention Second operation flowchart of display device according to Embodiment 1 of the present invention Third operation flowchart of display device according to Embodiment 1 of the present invention Fourth Operation Flowchart in Embodiment 1 of Display Device of the Present Invention Fifth Operation Flowchart in Embodiment 1 of Display Device of Present Invention Sixth operation flowchart in Embodiment 1 of the display device of the present invention Seventh operation flowchart of display device according to Embodiment 1 of the present invention Eighth operation flowchart in Embodiment 1 of the display device of the present invention First configuration diagram of an asynchronous packet according to Embodiment 1 of the present invention Second configuration diagram of an asynchronous packet according to the first embodiment of the present invention Configuration diagram of synchronization packet according to Embodiment 1 of the present invention Block diagram in Embodiment 1 of the playback device of the present invention First operation flowchart in Embodiment 1 of the playback device of the present invention Second operation flowchart in Embodiment 1 of the playback device of the present invention Third operation flowchart according to Embodiment 1 of the playback device of the present invention Fourth Operation Flowchart in Embodiment 1 of Playback Apparatus of the Present Invention Fifth operation flowchart in Embodiment 1 of the playback apparatus of the present invention Sixth operation flowchart in Embodiment 1 of the playback device of the present invention Seventh operation flowchart in Embodiment 1 of the playback apparatus of the present invention Eighth operation flowchart in Embodiment 1 of the playback device of the present invention Operation explanatory diagram of the TS decoder B340 in Embodiment 1 of the reproducing apparatus of the present invention. Explanatory drawing of a multiplexed form of transmission packets on a bus in Embodiment 1 of the reproducing apparatus of the present invention. Block diagram of a conventional display device First operation flowchart in conventional display device Second operation flowchart in conventional display device Block diagram of conventional playback device First operation flowchart in conventional playback device Second operation flowchart in the conventional playback device Third operation flowchart in the conventional reproducing apparatus Fourth operation flowchart in conventional playback device

Explanation of reference numerals

1 television receiver 5 receiver D
6 Demodulation unit D
7 TS decoder 8 AV decoder 9 Video switch 10 RGB processor 11 Display 12 Audio switch 13 R speaker 14 L speaker 16 Microcomputer 17 Buffer memory 18 Interface device 19 TS interface 20 YUV interface 21 LR interface 22 Microcomputer interface 23 Program related information memory 24 Synchronization Transmitter / receiver 25 Inserter 26 TS transmitter / receiver 27 YUV receiver 28 LR receiver 29 LINK
30 Asynchronous transmitting / receiving section 31 PHY
32 Node identification memory 34 Remote controller 35 Recording key 36 Channel identification information memory 38 Antenna 39 Light receiving unit 41 Stop key 42 Play key 43 Program information display key 44 Return key 45 RGB switch 46 OSD controller 47 d key 48 YUV scaling unit 49 Voice synthesis unit 50 IC card section 51 Descramble section 52 NVRAM
53 Command format memory 301 DVD recorder / player 302 PHY
303 LINK
304 Asynchronous transmitting / receiving section 305 Synchronous transmitting / receiving section 306 TS transmitting / receiving section 307 YUV transmitting section 308 LR transmitting section 309 TS interface 310 YUV interface 311 LR interface 312 Microcomputer interface 314 Node identification information memory 315 Channel identification information memory 317 Interface device 318 Remote control 319 Light receiving section 320 Microcomputer 321 Buffer memory 322 Recording stream selection unit 323 Recording signal processing unit 324 DVD disk 325 Servo controller 327 TS decoder A
328 Program-related information memory 329 Program index memory 330 Sub-picture decoder 335 Receiver D
336 Demodulation unit D
337 Antenna 340 TS decoder B
342 Record key 343 Play key 345 Playback signal processing unit 346 MPEG-2 decoder 347 Video synthesis unit 349 IC card unit 350 Descramble unit 351 Stop key 352 NVRAM
353 OSD controller 354 Command format memory

Claims (35)

In a display device that receives a recorded program read from a recording medium of a playback device via a transmission medium and outputs video information and audio information, video information and audio information of the recorded program can be received in an uncompressed format, Receiving means for receiving related information of a recorded program or related data broadcast program information in an uncompressed format or a transport stream format; a broadcast receiving means for receiving a broadcast program from a broadcast wave or a communication network; First decoding means for decoding video information and audio information of a broadcast program to be received by an appropriate decoding method, and related information or data broadcast program information of a recorded program received by the reception means or broadcast received by the broadcast reception means Second decoding means for inputting program-related information or data broadcast program information and decoding with an appropriate decoding method Selecting means for inputting and selecting video information and audio information of a recorded program received by the receiving means and video information and audio information of a broadcast program output by the first decoding means, and outputting video information and audio information; Output means for synthesizing / selecting the video information and audio information output by the selection means and the video information and audio information decoded by the second decoding means, and outputting the recorded program; When outputting the related information or the data broadcast program, the receiving unit decodes the second decoding unit and the second unit in the output unit based on the type of the transmission format of the related information or the data broadcast program received by the receiving unit. A control unit for controlling on / off of synthesis / selection of video information and audio information output by the decoding unit. A command receiving unit for receiving a command from the playback device; and the control unit associates video information and audio information of a recorded program stored in the received command with related information or related data broadcast program information and a transmission channel. The decoding of the second decoding means and on / off of synthesis / selection of video information and audio information output by the second decoding means in the output means are controlled based on the indicated information. Item 2. The display device according to Item 1. Command transmission means for transmitting a command to the reproduction device, and control means for controlling transmission of a command for requesting transmission of the information indicating the association when receiving a recorded program from the reproduction device. The display device according to claim 2. The display device according to claim 2, wherein the information indicating the association is information using identification information for identifying an interface on a transmission medium. The display device according to claim 2, wherein the information indicating the association is information using channel identification information for identifying a transmission channel logically established on a transmission medium. Scaling means for scaling video information of a recorded program received by the receiving means at a predetermined reduction rate, and control for performing scaling control of the scaling means based on data broadcast program information related to the recorded program received by the receiving means The display device according to claim 1, further comprising: The decoded video information and audio information of the recorded program are received from the first and second transmission channels as signals in an uncompressed format. 4. The display device according to claim 3, further comprising a single interface device including the receiving unit, the command transmitting unit, and the command receiving unit for receiving from the transmission channel. A first interface device including the receiving means for receiving decoded video information and audio information of a recorded program as a signal in an uncompressed format and related information of the recorded program or related data broadcast program information in a transport stream format The display device according to claim 3, further comprising a second interface device including the receiving unit, the command transmitting unit, and the command receiving unit. A command transmission unit for transmitting a command to the playback device, an operation unit for receiving a user operation, and a user operation using the operation unit interpreting and instructing display of related information of a recorded program being received from the playback device. 2. The display device according to claim 1, further comprising: control means for controlling to transmit a command for requesting transmission of the related information of the recorded program. A command transmission unit for transmitting a command to the playback device; an operation unit for receiving a user operation; and a data broadcast program information relating to a recorded program being received from the playback device by the user operation using the operation unit. 2. The display device according to claim 1, further comprising: control means for controlling to transmit a command for requesting transmission of data broadcast program information related to the recorded program when interpreted as an instruction to perform the recording program. A command transmission unit for transmitting a command to the playback device, an operation unit for receiving a user operation, and a user operation using the operation unit interpreting and instructing display of related information of a recorded program being received from the playback device. Control means for controlling the transmission of a command requesting transmission of video information synthesized with the decoded video information of the recorded program by decoding the related information of the recorded program. The display device according to claim 1. An operation unit for receiving a user operation, a command transmission unit for transmitting a command to the playback device, and a user operation using the operation unit displaying data broadcast program information related to a recorded program being received from the playback device. Control means for controlling to transmit a command requesting to transmit the video information combined with the video information of the recorded program by decoding the data broadcast program information related to the recorded program. The display device according to claim 1, further comprising: When the user's operation using the operation unit is interpreted as an instruction to end displaying the data broadcast program information related to the recorded program being received from the playback device, the command transmission unit is used to interpret the data related to the recorded program. 13. The display device according to claim 12, further comprising control means for controlling transmission of a command requesting termination of decoding and synthesis output of broadcast program information. Command transmitting means for transmitting a command to the playback device, a non-volatile memory for storing broadcaster-specific information obtained by receiving a broadcast program by a user, and a broadcaster-specific information from the nonvolatile memory 13. The display device according to claim 1, further comprising: a control unit configured to read data and transmit the read data using the command transmission unit. 14. When the operation of the user using the operation means is interpreted as an instruction to end displaying the data broadcast program information related to the recording program being received from the playback device, the data of the unique information for each broadcaster is transmitted from the playback device. Control means for receiving and controlling the broadcaster-specific information stored in the non-volatile memory by using the received broadcaster-specific information. 15. The display device according to 14. In a reproducing apparatus for transmitting a recorded program read out from a recording medium to a display device via a transmission medium, the recorded program recorded in a transport stream format is displayed with video information, audio information, related information, and related data broadcast program information. A first decoding unit for decoding video information and audio information output by the separation unit, and a proper decoding method for recording program related information or data broadcast program information output by the separation unit. And decoding means for combining / selecting video information and audio information output by the first decoding means and video information and audio information decoded by the second decoding means, and outputting the combined information. And video information and audio information in an uncompressed format output from the output means, and a transport stream output from the separation means. Transmitting means capable of transmitting related information of the recorded program before decoding of the format and related data broadcast program information to the transmission medium; and transmitting related information of the recorded program or the data broadcast program to the display device. On / off of decoding of the second decoding means and synthesis / selection of video information and audio information decoded by the second decoding means in the output means based on the type of transmission format of the information or the data broadcast program. A playback device comprising: a control unit for controlling the playback device. Command transmission means for transmitting a command to the display device, and transmitting a command indicating association between video information and audio information relating to the recorded program, related information of the recorded program, and related data broadcast program information and a transmission channel. 17. The reproducing apparatus according to claim 16, further comprising control means for controlling. Command receiving means for receiving a command from the display device, and control means for controlling to return a command indicating the association using the command transmission means when a command requesting a command indicating the association is received. The playback device according to claim 17, further comprising: 18. The reproducing apparatus according to claim 17, wherein the information indicating the association is information using identification information for identifying an interface on a transmission medium. 18. The reproducing apparatus according to claim 17, wherein the information indicating the association is information using channel identification information for identifying a transmission channel logically established on a transmission medium. The decoded video information and audio information of the recorded program are transmitted in uncompressed format signals on the first and second transmission channels, and the related information of the recorded program or the related data broadcast program information is transmitted in the third format in the transport stream format. 17. The reproducing apparatus according to claim 16, further comprising a single interface device including the transmitting unit, the command transmitting unit, and the command receiving unit for transmitting the data through the transmission channel. A first interface device including the transmission means for transmitting decoded video information and audio information of a recorded program as a signal in an uncompressed format, and transmitting related information of the recorded program or related data broadcast program information in a transport stream format. 17. The reproducing apparatus according to claim 16, further comprising a second interface device including the transmitting unit, the command transmitting unit, and the command receiving unit. Command receiving means for receiving a command from the display device, and control for controlling to return the related information of the recorded program using the command transmitting means when a command for requesting transmission of the related information of the recorded program is received. 18. The reproducing apparatus according to claim 17, comprising means. Command receiving means for receiving a command from the display device; and when receiving a command for requesting transmission of data broadcast program information relating to the recorded program, data broadcast program information relating to the recorded program using the command transmitting means. 17. A reproducing apparatus according to claim 16, further comprising: control means for controlling so as to send back. Command receiving means for receiving a command from the display device, and when receiving a command for requesting display of related information of the recorded program, video information and audio information in uncompressed format output by the first decoding means; 17. The reproducing apparatus according to claim 16, further comprising control means for controlling transmission of video information and audio information obtained by combining video information and audio information in an uncompressed format output from the second decoding means. Command receiving means for receiving a command from the display device, and when receiving a command for requesting display of data broadcast program information related to the recorded program, video information and audio in uncompressed format output by the first decoding means 17. A control unit for controlling transmission of video information and audio information obtained by combining information and video information and audio information in an uncompressed format output from the second decoding unit. Playback device. When the command receiving means receives a command for requesting decoding of the data broadcast program information related to the recorded program and termination of the combined display, the command receiving means is combined with the uncompressed format video information and audio information output by the second decoding means. 27. The reproducing apparatus according to claim 26, further comprising control means for controlling transmission of video information and audio information in an uncompressed format output from said first decoding means. A command receiving unit for receiving a command from the display device, and when the command receiving unit receives the broadcaster-specific information stored in the nonvolatile memory of the display device, the received nonvolatile information of the display device 27. A control device according to claim 16, further comprising control means for controlling the second decoding means to appropriately decode by applying the broadcaster-specific information stored in the memory. A playback device according to any one of the preceding claims. The unique information for each broadcaster stored in the nonvolatile memory is updated using the received unique information for each broadcaster stored in the nonvolatile memory of the display device. 29. The playback device according to claim 28. When the command transmitting means for transmitting a command to the display device and the command receiving means receive a command for requesting decoding of the data broadcast program information related to the recorded program and termination of the combined display, the command is stored in the nonvolatile memory. 29. The reproducing apparatus according to claim 28, further comprising control means for controlling transmission of unique information for each broadcaster using the command transmitting means. An uncompressed signal interface for inputting and outputting video signals and audio signals in an uncompressed format, an MPEG-2 interface for inputting and outputting data broadcast information or program related information in an MPEG-2 transport stream format, and an uncompressed signal interface. The input video signal and audio signal and the data broadcast information or program related information input from the MPEG-2 interface are stored in isochronous packets and transmitted to a single IEEE 1394 bus. An IEEE 1394 interface that receives and outputs video and audio signals to the uncompressed signal interface and outputs data broadcast information or program related information to the MPEG-2 interface. Interface device, characterized in that it comprises a Esu. An uncompressed signal interface for inputting and outputting video signals and audio signals in an uncompressed format, an MPEG-2 interface for inputting and outputting data broadcast information or program related information in an MPEG-2 transport stream format, and an uncompressed signal interface. Storing an input video signal and audio signal and data broadcast information or program-related information input from the MPEG-2 interface in an isochronous packet and transmitting the same to a single IEEE 802.3 bus; and a single IEEE 802.3 bus IEEE802.3 a receiving an isochronous packet from the ASIC and outputting a video signal and an audio signal to the uncompressed signal interface and outputting data broadcast information or program related information to the MPEG-2 interface. Interface device, characterized in that it comprises a interface. An uncompressed signal interface for inputting and outputting video signals and audio signals in an uncompressed format, an MPEG-2 interface for inputting and outputting data broadcast information or program related information in an MPEG-2 transport stream format, and an uncompressed signal interface. The input video signal and audio signal and the data broadcast information or program related information input from the MPEG-2 interface are stored in an isochronous packet and transmitted to a single USB bus, and the isochronous packet is transmitted from a single USB bus. A USB interface for receiving and outputting a video signal and an audio signal to the uncompressed signal interface and outputting data broadcast information or program related information to the MPEG-2 interface. That interface device. An uncompressed signal interface for inputting and outputting video signals and audio signals in an uncompressed format, an MPEG-2 interface for inputting and outputting data broadcast information or program related information in an MPEG-2 transport stream format, and an uncompressed signal interface. An input video signal and an audio signal and data broadcast information or program related information input from the MPEG-2 interface are stored in isochronous packets and transmitted by radio waves, and video signals and audio signals are received by receiving isochronous packets from the radio waves. And an IEEE 802.11 interface for outputting data broadcast information or program-related information to the MPEG-2 interface while outputting the data to the uncompressed signal interface. Face equipment. An uncompressed signal interface for inputting and outputting video signals and audio signals in an uncompressed format, an MPEG-2 interface for inputting and outputting data broadcast information or program related information in an MPEG-2 transport stream format, and an uncompressed signal interface. An input video signal and an audio signal and data broadcast information or program related information input from the MPEG-2 interface are stored in isochronous packets and transmitted by radio waves, and video signals and audio signals are received by receiving isochronous packets from the radio waves. And a UWB interface for outputting data broadcast information or program-related information to the MPEG-2 interface while outputting the data to the uncompressed signal interface.

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