JP2001023354A - Broadcast receiving and recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a mini disk(MD) by groups of data related to a program in a broadcast receiving and recording device which is composed of a broadcast receiving device to which the data related to the program is added every program and a MD player which records a received broadcast signal on the MD. SOLUTION: In this broadcast receiving and recording device, the MD player 11 is provided with a changer mechanism for selecting one sheet of the MD from among the plural sheets. When one or plural data related to the program are inputted to the respective MD in the MD player 11 by operating a key input device 6 in a broadcast receiving device 10, the inputted data related to the program is registered on a register 8 every MD. At the time of starting a reserved recording, the data related to the program which is included in the broadcast signal is compared with the data related to the program registered on the register 8 and it is judged if the data related to the program included in the broadcast best matched with the data related to the program of any of the MD. Further, the data for selecting the MD which is judged to be best matched is formed and is supplied to the MD player 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reception of a broadcast in which program-related data is added to a main signal such as an audio signal, such as FM multiplex broadcast or digital audio broadcast, and to a recording medium such as an MD (mini disc). The present invention relates to a broadcast receiving and recording apparatus capable of signal recording.

[0002]

2. Description of the Related Art In recent years, MD players capable of digitally recording audio signals and reproducing audio signals by random access have rapidly become widespread. By connecting an MD player to an FM broadcast receiver or the like, A received music program or the like is recorded on an MD.

[0003] When a plurality of programs broadcast in a certain time zone are continuously recorded on one MD, the MD contains a plurality of programs of different genres, for example, music programs and news programs. Will be recorded. Then, when a large number of such MDs are created, in order to reproduce a desired program thereafter, it is necessary to find one MD on which the desired program is recorded from all MDs,
It is troublesome.

Therefore, conventionally, after an MD in which a plurality of programs of different genres are mixed is created, a program recorded in the MD is edited on the MD for each genre. Thereby, for example, MDs by genre, such as MDs recording only music programs, MDs recording only news programs, and MDs recording only English conversation programs.
Therefore, when a desired program is reproduced thereafter, an MD can be selected based on the genre of the program, and the desired program can be reproduced quickly and easily.

[0005]

However, in the conventional method, an MD in which a plurality of programs of different genres are mixed.
There is a problem that the editing work when creating an MD for each genre is extremely complicated. Therefore, an object of the present invention is to provide a broadcast receiving and recording apparatus that can easily create a signal recording medium for each program-related data such as a program genre, a program name, and a language used in the program without performing an editing operation. To provide.

[0006]

In order to achieve the above object,
According to the present invention, a plurality of signal recording media can be loaded into a broadcast receiving apparatus in which program-related data is added to a main signal such as an audio signal such as an FM multiplex broadcast or a digital audio broadcast. Create a signal recording medium for each program-related data by connecting a signal recording device that can selectively record signals to one signal recording medium and issuing a signal recording medium selection command from the receiving device to the signal recording device It was possible to do.

That is, the broadcast receiving and recording apparatus according to the present invention comprises:
A broadcast receiving device (10) for receiving a broadcast to which one or more program-related data is added for each program, and a signal for recording a broadcast signal obtained from the broadcast receiving device (10) on a signal recording medium A plurality of signal recording media are simultaneously loaded into the signal recording device, and a broadcast signal can be recorded on one of the signal recording media selected from the recording devices. Here, the broadcast receiving device (10) includes input operation means for inputting one or a plurality of program-related data corresponding to each of the plurality of signal recording media loaded in the signal recording device, and input operation means. Register means for registering, for each recording medium, one or a plurality of program-related data input by operation of the means, data extracting means for extracting program-related data from a received signal, and the extracted program-related data, Determining means for determining which of the recording media registered in the register means most matches the program-related data; and, for the recording medium determined to have the best program-related data, Medium selection means for creating recording medium selection data for selection as an object of signal recording and sending the data to a signal recording device.

The program-related data includes, for example, broadcast station name data representing the name of the broadcast station of the program, program name data representing the name of the program, genre data representing the genre of the program, and a language representing the language used in the program. Data, time data about the broadcast time of the program, bit rate data representing the transmission bit rate of the received signal, monaural / stereo data representing the monaural / stereo distinction of the audio signal contained in the broadcast signal, or contained in the broadcast signal Sampling frequency data representing the sampling frequency of the digital audio signal to be reproduced.

In the broadcast receiving and recording apparatus of the present invention, for each of a plurality of recording media that can be loaded in the signal recording device, one or a plurality of program-related data on a program to be recorded on the recording medium by a user. And assign
By operating the input operation means, one or a plurality of program-related data is input for each signal recording medium. As a result, one or a plurality of program-related data is registered in the register means for each signal recording medium. Thereafter, when the user performs a predetermined operation to record one program on the signal recording medium, program-related data is extracted from the received signal of the program by the broadcast receiving device (10), and the program-related data is extracted. Is compared with the program-related data for each recording medium registered in the register means, and it is determined which recording medium matches the program-related data most. Then, for the recording medium determined to have the best program-related data, recording medium selection data for selecting the recording medium as a signal recording target is created and sent to the signal recording device. As a result, in the signal recording device, one recording medium is selected according to the recording medium selection data, and the broadcast signal obtained from the broadcast receiving device (10) is recorded on the recording medium.

In a specific configuration, the broadcast receiving device (10) further comprises a reservation recording means for pre-recording a desired program by a signal recording device, and when the reservation recording is started, the medium selection means transmits the recording medium selection data to a signal. Send to recording device.
In the specific configuration, when the scheduled recording start time comes, at that time, the recording medium selection data is supplied from the broadcast receiving device (10) to the signal recording device, and the recording medium is selected, and the recording medium is selected. Recording is automatically started for.

[0011]

According to the broadcast receiving and recording apparatus of the present invention, simple program-related data such as a program genre, a program name, and a language used in a program are registered for each of a plurality of recording media. Since the signal recording medium for each program-related data is created by the operation, the editing work as in the related art is unnecessary.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a digital audio satellite broadcast receiving and recording apparatus will be specifically described below with reference to the drawings. Digital audio satellite broadcasting can transmit a broadcasting program of many channels in one transmission frequency band having one center carrier frequency, and multiplexes audio data of each channel by TDM (time division multiplexing). Then, after performing QPSK modulation, it is distributed to each home as one broadcast wave. In each home, a desired channel can be selected by the receiving device.

In digital audio satellite broadcasting,
Audio data of a plurality of channels is time-division multiplexed into a TDM bit stream having a periodic frame structure as shown in FIG. Each frame includes a synchronization signal, a header, and a plurality of slots (1 to n), and each slot includes data of a predetermined number of bits. The header of each frame is composed of a plurality of labels (1 to n) corresponding to a plurality of slots (1 to n), and each label has data stored in the corresponding slot in which channel data. (Code for identifying the channel).

FIG. 6 shows a TDM bit stream in the case where the number of slots in one frame is 7, and a label 1
To label 7, the channel identification data “A”, “B”, “C”,
“A”, “B”, “A” and “0” are written. Note that the identification data “0” of the label 7 indicates an empty slot. In this example, for example, channel “A”
Means that data transmission is performed using three slots of slot 1, slot 4 and slot 6 of each frame.

Therefore, for example, when the program of channel "A" is selected, the data of slot 1, slot 4 and slot 6 are extracted from each frame of the TDM bit stream, and these data are By combining them in time series as shown in (1), a series of channel data constituting the program of channel "A" can be obtained.

A series of channel data thus obtained has an MPEG audio format including a header, audio data and auxiliary data (ancillary data) as shown in FIG. In the header, in addition to the synchronization word, as program-related data, broadcast station name data representing the name of the broadcast station of the program, program name data representing the name of the program, genre data representing the genre of the program, and the language used in the program. Language data, time data about the broadcast time of the program, bit rate data representing the transmission bit rate, monaural / stereo data representing the monaural / stereo distinction of the audio signal, sampling frequency data representing the sampling frequency of the audio signal, and the like are included. ing. It is also possible to record part of these data in the auxiliary data.

As shown in FIG. 1, the broadcast receiving and recording apparatus according to the present embodiment includes an MD player with a changer mechanism via an optical fiber (15) to a broadcast receiving apparatus (10) for receiving a digital audio satellite broadcast. (11) is connected. The broadcast receiving apparatus (10) includes a receiving circuit (2) including an antenna (1), a D / A converter (3) for converting a digital audio signal obtained from the receiving circuit (2) into an analog audio signal,
A speaker device (9) for outputting an audio signal obtained from the D / A converter (3) as audio; the operation of the receiving circuit (2) is controlled by a control circuit (4);

As shown in FIG. 2, the reception circuit (2) comprises an RF signal selection circuit (21), a QPSK demodulation circuit (22), a TDM demodulation circuit (23), an error correction circuit (27), an MPEG header reading circuit.
(28) and an MPEG decoding circuit (29) are connected in series. The RF signal selection circuit (21) selects a digital audio satellite broadcast wave from radio waves received by the antenna (1), and converts this to an intermediate frequency.
PLL using PLL circuit including programmable frequency divider
A synthesizer system is adopted, and the reception frequency is selected by controlling the frequency division ratio of the programmable frequency divider. In the QPSK demodulation circuit (22), a baseband signal is demodulated from the phase-modulated carrier.

The TDM demodulation circuit (23) is a frame synchronization circuit.
(24), a header reading circuit (25), and a channel decoding circuit (26) .First, an output of the QPSK demodulation circuit (22) is supplied to a frame synchronization circuit (24), and based on a synchronization signal, Frame synchronization is achieved. When the frame synchronization is established, a header included in each frame of the TDM bit stream is read by the header reading circuit (25). When the user selects a desired channel, the channel decode circuit (26) extracts the data contained in the slot of the selected channel, and combines these data in a time series to form a series of channel data. Is reconstructed.

The channel data obtained from the TDM demodulation circuit (23) is subjected to error correction by an error correction circuit (27).
Next, after the MPEG header is read by the MPEG header reading circuit (28), it is supplied to the MPEG decoding circuit (29) and subjected to MPEG decoding. The digital audio signal obtained by this is output to the speaker device (9) via the D / A converter (3) as shown in FIG. 1, and is also supplied to the signal processing circuit (5).

As shown in FIG. 1, the operation of the receiving circuit (2) is controlled by a control circuit (4) comprising a microcomputer. A key input device (6) and a memory (7) are connected to the control circuit (4). By operating the key input device (6), a program can be selected and a recording reservation can be made.

The signal processing circuit (5) includes an integrated circuit for converting a digital audio signal obtained from the receiving circuit (2) into a necessary sampling frequency, performing copyright protection processing, etc., and performs processing by the integrated circuit. The digital audio signal
After being converted into an optical signal, the optical signal (15)
It is sent to the D player (11). Note that a register (8) is connected to the signal processing circuit (5), and MD selection control described later is realized by using the register (8).

On the other hand, the MD player (11)
(MD1 to MDn) can be loaded at the same time, and one MD is selectively sent to a recording / reproducing device (14) by a changer mechanism (not shown) to record or record signals on the MD. The reproduction is performed. MD player
(11) includes a signal processing circuit (12) for converting a digital audio signal transmitted from the broadcast receiving device (10) into an electric signal, and an operation of the signal processing circuit (12) and the recording / reproducing device (14). And a control circuit (13) including a microcomputer for controlling.

In the above broadcast receiving and recording apparatus, when the user sets reservation recording, the user operates the key input device (6) to reserve the channel name, recording start time, recording end time, etc. of the program to be recorded. Enter the required data.
These reservation data are stored in the memory (7). Also, the user operates the key input device (6) to operate the MD player (11).
For each of a plurality of MDs (MD1 to MDn) loaded into the MD, the user inputs one or a plurality of program-related data such as a genre of a program to be recorded on the MD. For example, for MD1, genre data indicating that the genre of the program is a music program and sampling frequency data indicating that the sampling frequency is 48 kHz are input, and for MD2, the genre of the program is a news program. Genre data and language data indicating that the language used in the program is Japanese are input, and for MDn, language data indicating that the language used in the program is English is input.

The inputted program-related data is stored in a memory (7).
Are once stored in the register (8) and registered in the register (8) as a table as shown in FIG. In the example of FIG. 3, two program-related data H1 and H2 are registered for MD number 1,
One program-related data H3 is registered for the MD number 2, and two program-related data H1 and H5 are registered for the MD number n.

FIG. 4 shows a control circuit (4) of the broadcast receiving apparatus (10).
Shows a scheduled recording control procedure executed by the program. First, in step S1, it is determined whether or not the recording start time has arrived. When the determination is yes, in step S2,
Acquiring program-related data from received broadcast channel data;
Compare with the registered program related data registered in (8),
It is determined which of the registered program-related data of the acquired program-related data matches the registered program-related data of which MD number, and MD selection data is created. For example, when the acquired program-related data includes genre data indicating that the genre of the program is a news program and language data indicating that the language used in the program is Japanese, the two acquired program-related data If there is an MD in which both program-related data are registered, the MD number is used as the MD selection data, and such an MD is selected.
Is not present, the number of the MD in which one of the program-related data is registered is used as the MD selection data.

Next, at step S3, the MD selection data and the recording start signal created as described above are transmitted to the signal processing circuit.
Sent from (5) to MD player (11). Subsequently, at step S4, the MD processing is performed by the signal processing circuit (5).
The transmission of the digital audio signal of the selected program is started toward (11). As a result, the MD player (11) receives the MD selection data, sends the MD of the number designated by the data to the recording / reproducing device (14), and sets it at the signal recording position. Then, in response to the recording start command, the operation of recording the digital audio signal sent from the signal processing circuit (5) in the MD at the signal recording position is started.

Thereafter, in step S5, it is determined whether or not the recording end time has arrived. If the answer is yes, the process proceeds to step S6, where a recording end signal is transmitted to the MD player (11). Subsequently, in step S7, the transmission of the digital audio signal ends. As a result, the MD player (1
In 1), after stopping the recording operation for the MD at the signal recording position in response to the recording end signal, the MD is transported to the original standby position.

As described above, according to the broadcast receiving and recording apparatus of the present invention, each MD in the MD player (11)
By simply registering program-related data such as the genre of the program to be recorded for each D, the name of the program, the language used in the program, etc., at the time of scheduled recording, according to the content of the program to be recorded,
One MD is selected, recording is performed on the MD, and an MD for each program-related data, for example, an MD recording only a news program, an MD recording only a music program,
An MD or the like in which only the English conversation program is recorded is created. Therefore, when the desired program is reproduced thereafter, the MD can be selected based on the genre of the program, and the desired program can be reproduced quickly and easily.

The configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims. For example, in the above embodiment, the program channel name, the recording start time, and the recording end time are set as the data for the scheduled recording. It is also possible to set data.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a broadcast receiving and recording apparatus according to the present invention.

FIG. 2 is a block diagram illustrating a configuration of a receiving circuit.

FIG. 3 shows an MD registered in a register of the broadcast receiving apparatus.
It is a figure showing the program related data for every.

FIG. 4 is a flowchart illustrating a scheduled recording control procedure executed by the broadcast receiving device.

FIG. 5 is a diagram illustrating a data structure of a TDM bit stream.

FIG. 6 is a diagram illustrating an example of a TDM bit stream.

FIG. 7 is a diagram illustrating a configuration of channel data obtained by channel selection.

FIG. 8 is a diagram showing an MPEG audio format.

[Explanation of symbols]

 (10) Broadcast receiver (2) Receiving circuit (4) Control circuit (5) Signal processing circuit (8) Register (11) MD player (12) Signal processing circuit (13) Control circuit (14) Recording / reproducing device (15) ) Optical fiber

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 27/10 L

Claims (3)

[Claims] 1. A broadcast receiving apparatus for receiving a broadcast to which one or a plurality of program-related data is added for each program, and a signal recording for recording a broadcast signal obtained from the broadcast receiving apparatus on a signal recording medium. A plurality of signal recording media are simultaneously loaded in the signal recording device, and a broadcast signal can be recorded on one signal recording medium selected from the plurality of signal recording media. Are input operation means for inputting one or a plurality of program-related data corresponding to each of a plurality of signal recording media loaded in the signal recording device; Register means for registering a plurality of program-related data for each recording medium; data extracting means for extracting program-related data from a received signal; Determining means for determining which of the recording media registered in the register means most matches the program-related data; and for the recording medium determined to have the best program-related data, A broadcast receiving and recording apparatus, comprising: a medium selecting means for creating recording medium selection data for selection as a signal recording target and transmitting the data to a signal recording apparatus. 2. The program-related data includes broadcast station name data representing the name of the broadcast station of the program, program name data representing the name of the program, genre data representing the genre of the program, language data representing the language used in the program, and program data. Time data for the broadcast time, bit rate data representing the transmission bit rate of the received signal, monaural / stereo data representing the monaural / stereo distinction of the audio signal contained in the broadcast signal, and digital audio signal contained in the broadcast signal 2. The broadcast receiving and recording apparatus according to claim 1, wherein the broadcast receiving and recording apparatus includes one or a plurality of pieces of data selected from sampling frequency data representing the sampling frequency. 3. The broadcast receiving apparatus further comprises a reservation recording means for pre-recording a desired program by a signal recording apparatus, wherein the medium selection means sends recording medium selection data to the signal recording apparatus at the start of the reservation recording. The broadcast receiving and recording apparatus according to claim 1 or 2.