JP2008061177A - Terrestrial digital broadcast receiver, terrestrial digital broadcast recording apparatus and terrestrial digital broadcast recording system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terrestrial digital broadcast recording system in which recording of a program can be immediately instructed from a portable device for partially receiving terrestrial digital broadcast to a fixed type terrestrial digital broadcast recording apparatus. <P>SOLUTION: A terrestrial digital broadcast receiver (100) which partially receives terrestrial digital broadcast comprises an acquisition section (106) for acquiring information of a program receivable by the receiver (100), and a communication section (108) which performs communication between the receiver(100) and an external terrestrial digital broadcast recording apparatus (200A). The communication section (108) transmits to the terrestrial digital broadcast recording apparatus (200A) a recording request signal indicating information of which the recording is instructed, among pieces of information acquired by the acquisition section (106). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a terrestrial digital broadcast recording system, and more particularly to a system for instructing recording of a program from a portable device that partially receives terrestrial digital broadcast to a stationary terrestrial digital broadcast recording device.

  With the widespread use of ISDB-T (Integrated Services Digital Broadcasting for Terrestrial), the so-called one-segment service that divides the bandwidth per channel into 13 segments and uses one of these segments has started. . As a result, it is possible to partially receive terrestrial digital broadcasts even with a mobile terminal or the like having a terrestrial digital broadcast reception function.

  However, even if it is attempted to record a program received by a mobile terminal or the like, in addition to being able to receive only one segment, it may be difficult to record well because it is difficult to receive a stable broadcast outdoors. For this reason, it is expected to record higher quality images and sounds by instructing recording of a desired program from a portable terminal or the like to a terrestrial digital broadcast recording apparatus installed at home or the like.

As for analog television broadcasting, the program information is acquired from a recording device with a reservation function installed at home, etc., and by selecting and transmitting the program information to be recorded, a stationary recording device from a portable terminal A technique for instructing recording of a program is known (for example, see Patent Document 1).
JP 2000-13697 A

  In order to instruct recording of a program from a portable terminal to a stationary recording apparatus, program information is required. In the above technique, when the portable terminal does not hold the program information, the user knows the program information to be recorded and inputs the information or has the program information transferred from a stationary recording device There is a need. Therefore, it is difficult to instruct recording immediately.

  In view of the above problems, the present invention provides a terrestrial digital broadcast recording system capable of promptly instructing recording of a program from a portable device that partially receives terrestrial digital broadcasts to a stationary terrestrial digital broadcast recording device. It is a problem to realize.

  Means taken by the present invention to solve the above-described problem is that a terrestrial digital broadcast receiving device that partially receives terrestrial digital broadcasts, an acquisition unit that acquires information on a program that the device can receive from a terrestrial digital broadcast wave; A communication unit that performs communication between the apparatus and an external terrestrial digital broadcast recording apparatus is provided. Here, it is assumed that the communication unit transmits to the digital terrestrial broadcast recording apparatus a recording request signal indicating what is instructed to be recorded from the information acquired by the acquiring unit.

  According to this, the information on the program transmitted together with the broadcast content by the terrestrial digital broadcast wave is acquired by the acquisition unit, and the recording instruction is performed by transmitting the information to be recorded from the acquired information. Therefore, when the recording instruction is given by the user, it is only necessary to select and transmit the designated program information from the already acquired program information. Can be directed to.

  Preferably, the communication unit receives a recording propriety signal indicating a processing result for the recording request signal from the terrestrial digital broadcasting recording device, and the terrestrial digital broadcasting receiving device receives the processing result based on the recording propriety signal. It is assumed that a presentation control unit for presenting via a user interface is provided.

  According to this, it is possible to present to the user whether or not the program instructed to be recorded from the device that partially receives the terrestrial digital broadcast can be recorded.

  Specifically, the recording request signal includes at least one of information indicating a channel number and broadcast time and information indicating a program name.

  On the other hand, the means provided by the present invention is a terrestrial digital broadcast recording apparatus, which is instructed to record with a communication unit that performs communication between the apparatus and an external terrestrial digital broadcast reception apparatus that partially receives the terrestrial digital broadcast. And a recording control unit for controlling recording of the program. Here, the communication unit receives a recording request signal indicating information of a program for which recording is instructed from the terrestrial digital broadcast receiving device, and the recording control unit records the program indicated by the recording request signal. Shall be controlled.

  According to this, it is possible to record the program indicated by the recording request signal received from the external terrestrial digital broadcast receiving apparatus that partially receives the terrestrial digital broadcast.

  Preferably, the recording request signal indicates at least a program name, a channel number, and a broadcasting time, and the terrestrial digital broadcasting recording device is configured to transmit the channel number and the broadcasting time indicated by the recording request signal from the terrestrial digital broadcasting wave. And an acquisition unit that acquires the program name specified by the recording unit, and a determination unit that determines whether the program name indicated by the recording request signal matches the program name acquired by the acquisition unit. . Here, it is assumed that the recording control unit controls the recording of the matched program when the matching unit determines that the match is found.

  According to this, since the program name determined to be inconsistent is not recorded, the resource of the recording medium in the recording apparatus is not wasted.

  More preferably, the communication unit transmits a record enable / disable signal indicating the determination result of the determination unit to the terrestrial digital broadcast receiver.

  According to this, in the digital terrestrial broadcast receiving apparatus that has instructed recording of a program, it is possible to present whether or not recording has been performed as instructed.

  Preferably, the recording request signal indicates at least a program name, and the terrestrial digital broadcast recording apparatus acquires an information of a program that the apparatus can receive from a terrestrial digital broadcast wave, It is assumed that a search unit is provided for searching for information corresponding to the program name indicated by the recording request signal from the information acquired by the acquisition unit. Here, the recording control unit controls the recording of the program searched by the searching unit.

  According to this, even if the broadcast reception channel number is different between the device that partially receives the terrestrial digital broadcast and the terrestrial digital recording device, it is possible to record the program instructed to be recorded.

  More preferably, the communication unit transmits a record enable / disable signal indicating the search result of the search unit to the terrestrial digital broadcast receiving apparatus.

  According to this, in the digital terrestrial broadcast receiving apparatus that has instructed recording of a program, it is possible to present whether or not recording has been performed as instructed.

  As described above, according to the present invention, a portable terrestrial digital broadcast receiver can immediately instruct the stationary terrestrial digital broadcast recorder to record a program.

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

(First embodiment)
FIG. 1 shows a configuration example of a digital terrestrial broadcast recording system according to the first embodiment. This system 1A includes a terrestrial digital broadcast receiving apparatus 100 and a terrestrial digital broadcast recording apparatus 200A, and records terrestrial digital broadcasts by transmitting and receiving signals between these apparatuses. The configuration of each device will be described below.

(Receiver)
The receiving apparatus 100 includes an antenna 101, a channel selection unit 102, a demodulation unit 103, a separation unit 104, a decoding unit 105, an acquisition unit 106, a presentation control unit 107, a communication unit 108, a user interface 109, and an input unit 110. The receiving device 100 is, for example, a mobile phone terminal that partially receives digital terrestrial broadcasting.

  The channel selection unit 102 selects the channel number designated by the user from the terrestrial digital broadcast wave received via the antenna 101. The demodulation unit 103 receives the signal of the channel number selected by the channel selection unit 102, performs OFDM (Orthogonal Frequency Division Multiplexing) demodulation and error correction, and outputs a transport stream signal TS. The separation unit 104 receives the signal TS and separates it into a video elementary stream signal VES, an audio elementary stream signal AES, and control information dc. The decoding unit 105 decodes the signals VES and AES separated by the separation unit 104.

  The acquisition unit 106 acquires information dp of a program that can be received by the receiving apparatus 100 from a terrestrial digital broadcast wave. Specifically, the acquisition unit 106 extracts, from the information dc separated by the separation unit 104, a channel number, a program name, a broadcast time, and the like of a program broadcast on the channel number being selected by the channel selection unit 102. .

  The presentation control unit 107 presents various information to the user via the user interface 109. Specifically, the presentation control unit 107 presents the signal decoded by the decoding unit 105, the information dp acquired by the acquisition unit 106, and the like via the user interface 109. The user interface 109 includes, for example, a liquid crystal screen and a speaker. The input unit 110 receives a user operation and outputs a signal s1 indicating a recording instruction.

  The communication unit 108 communicates with an external recording device 200A described later. Specifically, when the communication unit 108 receives the signal s1, the communication unit 108 transmits, as a recording request signal s2, an instruction designated from the information dp acquired by the acquisition unit 106 to the recording apparatus 200A. Further, the recording apparatus 200A receives a recording permission / inhibition signal s5 indicating a processing result for the signal s2. The content indicated by the signal s5 is presented by the presentation control unit 107 via the user interface 109. Communication between the receiving apparatus 100 and the recording apparatus 200A can be realized by a communication line such as a mobile phone or a communication means such as a wireless LAN.

  Note that the receiving apparatus 100 can make a recording reservation as well as an instruction to record the program being selected.

(Recording device)
Next, the recording apparatus 200A will be described. Components having the same functions as those of the receiving device 100 are given the same reference numerals and description thereof is omitted. The recording apparatus 200A includes an antenna 101, a channel selection unit 102, a demodulation unit 103, a separation unit 104, a decoding unit 105, an acquisition unit 106, a communication unit 108, a determination unit 201, and a recording control unit 202. The recording device 200A receives a terrestrial digital broadcast and records a program for which recording is instructed.

  A signal s2 received by the communication unit 108 indicates the program name, channel number, and broadcast time of the program for which recording is instructed. The channel selection unit 102 selects the channel number indicated by the signal s2. The acquisition unit 106 acquires information dr indicating the program name of the broadcast time indicated by the signal s2 from the signal dc separated by the separation unit 104.

  The determination unit 201 compares the information dr with the information indicated by the signal s2, and determines whether or not the program name acquired by the acquisition unit 106 matches the program name indicated by the signal s2. Further, the determination unit 201 outputs a signal s3a indicating the determination result. Specifically, the determination unit 201 sets the signal s3a to be enabled when the program name acquired by the acquisition unit 106 and the program name indicated by the signal s2 match, while the signal name when the program name does not match. Set s3a to disabled.

  The recording control unit 202 controls recording of the program indicated by the signal s2. Specifically, when the signal s3a is enabled, the recording control unit 202 outputs a signal s4 indicating the channel number of the program to the channel selection unit 102 when the broadcast time of the program indicated by the signal s2 comes, and the decoding unit The signal decoded by 105 is recorded. On the other hand, when the signal s3a is disabled, the program indicated by the signal s2 is not recorded. Further, the signal s3a indicating the determination result is transmitted to the receiving apparatus 100 as the record enable / disable signal s5 via the communication unit 108.

  According to the present embodiment, an instruction designated from program information transmitted together with broadcast content by terrestrial digital broadcast waves is transmitted as a recording request signal from the receiving apparatus to the recording apparatus, and the program designated by the recording apparatus is recorded. The That is, since the information of the program is acquired by the receiving device while the user is watching the program, the user can simply perform a simple operation such as pressing the recording button without interrupting the viewing of the program. A recording instruction can be immediately given from an outside receiving device to a recording device at home.

  In addition, since a program different from the program desired by the user is not recorded, useless consumption of resources of the recording medium in the recording apparatus can be eliminated. Since the reception device presents the processing result in the recording device, the user can check whether or not the program instructed to be recorded can be recorded.

  When the program name determination process is not performed, information that can identify a program to be recorded, such as a channel number, a broadcast time, and a program name, may be transmitted as the signal s2, and the program may be recorded. At this time, the acquisition unit 106 and the determination unit 201 can be omitted. Presentation of the processing result for the recording request signal is not essential and may be omitted.

  Further, although the recording apparatus 200A has been described as one that receives and records terrestrial digital broadcasts fixedly, the recording apparatus 200A is not limited thereto, and may be one that partially receives and records.

(Second Embodiment)
FIG. 2 shows a configuration example of a digital terrestrial broadcast recording system according to the second embodiment. The system 1B includes a receiving device 100 and a recording device 200B. The configuration of receiving apparatus 100 is the same as that shown in FIG. Hereinafter, the recording apparatus 200B will be described.

  The recording apparatus 200B includes a search unit 203 instead of the determination unit 201 of the apparatus 200A illustrated in FIG. The acquisition unit 106 acquires, from the signal dc separated by the separation unit 104, the program name and broadcast time related to the channel number being selected by the channel selection unit 102 as information da.

  The search unit 203 receives the information da and the signal s2, and searches the program name and broadcast time included in the information da for a program corresponding to the program name and broadcast time indicated by the signal s2. Then, when there is no corresponding program, the search unit 203 sequentially outputs channel numbers to be selected to the channel selection unit 102 and repeats the above search for all receivable channels. Further, the search unit 203 outputs a signal s3b indicating the search result. Specifically, if there is a program corresponding to the program name indicated by the signal s2, the search unit 203 outputs a signal s3b indicating the channel number and broadcast time of the corresponding program. On the other hand, if there is no corresponding item, a signal s3b indicating the content is output. The signal s3b is transmitted to the receiving apparatus 100 as the record enable / disable signal s5 via the communication unit 108.

  When the search unit 203 searches for the corresponding program, the recording control unit 202 controls the recording of the program based on the channel number and the broadcast time indicated by the signal s3b.

  According to the present embodiment, even when the program information is different because the receiving area is different between the receiving device and the recording device, the program desired by the user is searched in the recording device, so that the desired program is recorded. Can do.

  Note that the information indicated by the signal s2 may indicate a program name to be recorded. At this time, the acquisition unit 106 may acquire information da for all channel numbers that can be received by the recording apparatus 200B, and the search unit 203 may perform search processing based on program names. Further, the notification of the processing result is not essential and may be omitted.

  Further, although the recording apparatus 200B has been described as one that receives and records terrestrial digital broadcasts in a fixed manner, the recording apparatus 200B is not limited thereto, and may be one that receives and records partially.

  The terrestrial digital broadcasting system according to the present invention can promptly record a program to a stationary terrestrial digital broadcasting recording device from a portable receiving device that partially receives the terrestrial digital broadcasting. The present invention is useful as a system including a digital terrestrial broadcast recording apparatus installed in a home or the like capable of communicating with a mobile phone terminal having a digital broadcast receiving function and a personal digital assistant (PDA).

It is a figure which shows the structural example of the communication system which concerns on 1st Embodiment. It is a figure which shows the structural example of the communication system which concerns on 2nd Embodiment.

Explanation of symbols

1A, 1B Terrestrial digital broadcast recording system 100 Terrestrial digital broadcast receiver 106 Acquisition unit 107 Presentation control unit 108 Communication unit 109 User interface 200A, 200B Terrestrial digital broadcast recording device 201 Determination unit 202 Recording control unit 203 Search unit

Claims (9)

A terrestrial digital broadcast receiver that partially receives terrestrial digital broadcasts,
An acquisition unit that acquires information on a program that can be received by the device from a terrestrial digital broadcast wave;
A communication unit that performs communication between the device and an external terrestrial digital broadcast recording device;
The terrestrial digital broadcast receiving device, wherein the communication unit transmits a recording request signal indicating an instruction for recording from the information acquired by the acquiring unit to the terrestrial digital broadcast recording device. In the terrestrial digital broadcast receiver according to claim 1,
The communication unit receives a record propriety signal indicating a processing result for the recording request signal from the terrestrial digital broadcast recording device,
A digital terrestrial broadcast receiving apparatus, comprising: a presentation control unit that presents the processing result via a user interface based on the recording enable / disable signal. In the terrestrial digital broadcast receiver according to claim 1,
The digital terrestrial broadcast receiving apparatus, wherein the recording request signal includes at least one of information indicating a channel number and a broadcast time and information indicating a program name. A terrestrial digital broadcast recording device,
A communication unit that performs communication between the device and an external terrestrial digital broadcast receiver that partially receives the terrestrial digital broadcast;
A recording control unit that controls recording of a program instructed to record,
The communication unit receives a recording request signal indicating information of a program instructed to be recorded from the terrestrial digital broadcast receiving device;
The digital terrestrial broadcast recording apparatus, wherein the recording control unit controls recording of a program indicated by the recording request signal. The terrestrial digital broadcast recording apparatus according to claim 4,
The recording request signal indicates at least a program name, a channel number, and a broadcast time,
The terrestrial digital broadcast recording device
An acquisition unit that acquires a program name specified by a channel number and a broadcast time indicated by the recording request signal from a terrestrial digital broadcast wave;
A determination unit that determines whether the program name indicated by the recording request signal matches the program name acquired by the acquisition unit;
The digital terrestrial broadcasting recording apparatus, wherein the recording control unit controls recording of the matched program when the determination unit determines the match. The terrestrial digital broadcast recording apparatus according to claim 5,
The terrestrial digital broadcast recording apparatus, wherein the communication unit transmits a record permission / rejection signal indicating a determination result of the determination unit to the terrestrial digital broadcast reception apparatus. The terrestrial digital broadcast recording apparatus according to claim 4,
The recording request signal indicates at least a program name,
The terrestrial digital broadcast recording device
An acquisition unit that acquires information on a program that can be received by the device from a terrestrial digital broadcast wave;
A search unit for searching for a program corresponding to the program name indicated by the recording request signal from the information acquired by the acquisition unit;
The digital terrestrial broadcast recording apparatus, wherein the recording control unit controls recording of a program searched by the searching unit. The terrestrial digital broadcast recording apparatus according to claim 7,
The terrestrial digital broadcast recording apparatus, wherein the communication unit transmits a record permission / rejection signal indicating a search result of the search unit to the terrestrial digital broadcast reception apparatus. A terrestrial digital broadcast receiver according to claim 1;
A terrestrial digital broadcast recording system comprising the terrestrial digital broadcast recording apparatus according to claim 4.

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