JP2001144699A - Broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a broadcast receiver that detects a broadcast start time in the unit of musical piece so as to attain reservation processing in the unit of musical piece. SOLUTION: The broadcast receiver of this invention has a reception means that receives broadcast program attached information, a storage means that stores the received program attached information, a detection means that detects temporal periodicity of the program attached information, and a program list generating means that generates an electronic program guide on the basis of the temporal periodicity of the program attached information. Since the electronic program guide can easily be generated even from less information at a transmitter side as the program attached information of a repetitive broadcast by generating the electronic program guide from the program attached information, the broadcast start time, e.g. in the unit of musical piece and the reservation processing in the unit of musical piece can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast receiver, and more particularly to a broadcast receiver suitable for performing a reservation process for each music piece in a digital broadcast music broadcast.

[0002]

2. Description of the Related Art FIG. 5 is a diagram showing a basic configuration of a digital broadcast receiver. The decoding procedure of the digital broadcast receiver 500 will be described. A broadcast is received from an antenna 501 via an antenna terminal 519, tuning is performed by a tuner 502 of the digital broadcast receiver, and QPSK is performed.
Demodulator and error correction processing unit (hereinafter abbreviated as FEC) 50
In step 3, it is converted to a transport stream.

[0003] The converted transport stream is transmitted by a transport 504 to audio data, video data,
It is separated into program information (SI: Service Information) data. The separated audio data is supplied to the MPEG audio demodulation unit 5
05 and demodulated to digital audio data,
A (DA converter) 507 sends the analog audio output to the TV monitor 517 and outputs it.

At the same time, the digital audio data is modulated into optical audio by the optical audio output 506 and sent to an optical audio recording device such as an MD recorder 516, where the audio data is recorded.
The separated video data is converted into digital video data by the MPEG video demodulation unit 508 and the video encoder 511
Sent to

[0005] Sound navigation information is extracted from the separated program information (SI) data by a sound navigation information demodulation unit 510 and stored in a memory 509. Memory 509
The guide information is created on the basis of the sound navigation information stored in the PC, and OSD (On Screen Display: TV screen display) display processing 513 is performed to create necessary screen data.

The screen data generated here and the video data generated by the MPEG video demodulation unit 508 are mixed,
The video encoder 511 sends the analog video output to the TV monitor 517 and outputs it.

Here, for example, when making a program reservation, when the user performs a reservation operation with the remote control or the control panel 520, the content of the operation is decoded by the control code demodulation unit 521, the OSD display processing 513 is performed, and the guide information is transmitted. Based on the reservation processing.

The reserved information is stored in the memory 509, and when the reserved time comes, the reserved execution processing unit 512
The tuner 502 and the transport 504 are controlled to perform a channel selection process of the designated CH.

At the time of executing the reservation, the video mouse output unit 514 transmits a recording control signal to the video deck 518, and the selected program is video-recorded. Similarly, if a control signal for MD is transmitted using the video mouse output unit 514, the MD recorder 516 can be operated in conjunction with the reservation process.

Normally, the MD recorder 516 has a function of detecting the presence or absence of optical audio data, and the optical audio output 506 controls the optical audio output by the reservation execution processing unit 512 only during execution of the reservation. Thus, the MD recorder 516 is linked to the reservation processing.

The CPU 515 controls each block. FIG. 3 is a diagram showing a conventional music broadcast reservation processing flow. First, a user requests display of a program guide for reserving a program (step S30).
0).

When a display request of a program guide is issued, based on event information of a program transmitted by broadcasting (event information: information such as a program broadcast start time, a program broadcast time length, and a program title) are included. A program guide screen is created and displayed (step S301).

The event information of a music broadcast program is one event per day (that is, one program per day, in which music is repeatedly broadcast at a period of about two hours).
(Note: As of June 1999, the digital satellite broadcasting SKY Perfec TV's music radio channel only broadcasts such specifications, but is not guaranteed.) Is a daily reservation.

[0014] As described above, the program reservation based on the time from the program guide is an event-based reservation because of the information on an event-by-event basis. Therefore, a music broadcast program is reserved on an event-by-event basis (daily basis) (step S302). ).

When the broadcast start time of the reserved music broadcast program comes, a reservation process is executed, and the reserved program is selected (step S303).
The recording of the music broadcast is started by automatically operating the D recorder (step S304).

[0016] When the broadcast end time of the reserved music broadcast program comes, the reservation process is terminated (step S305), and at the same time, the recording to the video or MD recorder is stopped (step S306). Thus, the reservation process is completed (step S307).

As described above, since a program guide is conventionally created based on event information, only a reservation for each event can be made. Had to do.

FIG. 4 is a diagram showing an example of using conventional sound navigation information. The sound navigation information includes a music title 400 and a music player 4 corresponding to the music being broadcast.
01, music performance time (performance total time) 402, and music performance elapsed time 403.

Utilizing this information, information on the music currently being received is displayed as shown in FIG. The title of the currently broadcast song 400 and the name of the currently performing song player 401
By displaying the music performance time 402 currently being broadcast and the music performance elapsed time 403 indicating how much time has elapsed since the performance of the music currently being broadcast is started, the information of the music being listened to is displayed. You can check in real time.

At present, the sound navigation information is transmitted at intervals of about once every two or three seconds (note: this interval is not guaranteed, in particular). Since the start time is not included and the sound navigation information corresponding to the music is not sent until immediately before the performance of the music, the music navigation information cannot be used as the reservation information for each music.

[0021]

As described above, the sound navigation information transmitted in the music broadcast does not include the broadcast start time information of the corresponding music, and furthermore, immediately before the performance of the music starts. However, since the sound navigation information corresponding to the music is not sent, it cannot be used as reservation information for each music.

For this reason, conventionally, only the transmitted sound navigation information is displayed as it is to be the currently broadcasted music information, or the sound navigation information is recorded as list information and displayed as history information. .

The present invention utilizes sound navigation information and the fact that music broadcasting is repeatedly broadcast at a certain period,
It is an object of the present invention to detect a broadcast start time for each music piece and enable a reservation process for each music piece.

[0024]

A broadcast receiver according to the present invention comprises:
Receiving means for receiving the broadcasted program additional information; storage means for storing the received program additional information; detecting means for detecting a temporal periodicity of the program additional information; and a temporal cycle of the program additional information. Program guide creating means for creating an electronic program guide based on the characteristics.

[0025] Also, the broadcast receiver of the present invention comprises: a receiving means for receiving program additional information to be broadcast; a means for storing the received program additional information for each program element constituting a program; Detecting means for detecting the temporal periodicity of each program element, and program table creating means for creating an electronic program guide for each program element based on the temporal periodicity of each program element of the program additional information. Things. This makes it possible to easily create an electronic program guide for each program element by using repetition of the program additional information from information with a small number of senders.

[0026] Further, the broadcast receiver of the present invention comprises a receiving means for receiving sound navigation information of a music broadcast, a storage means for storing the received sound navigation information, and detecting a temporal periodicity of the sound navigation information. And a program guide creating means for creating an electronic program guide based on the temporal periodicity of the sound navigation information. As a result, an electronic program guide can be easily created by using repetition of sound navigation information from information with a small number of senders.

Further, the broadcast receiver of the present invention comprises: a receiving means for receiving sound navigation information of a music broadcast; a storage means for storing the received sound navigation information for each music piece; The program includes a detecting means for detecting a temporal periodicity, and a program guide creating means for creating an electronic program guide for each music based on the temporal periodicity for each music in the sound navigation information. This makes it possible to easily create an electronic program guide for each piece of music by using the repetition of sound navigation information from information with a small number of senders.

[0028] Further, a reservation means for reserving a program from the electronic program guide, a shortest time detection means for detecting a shortest time when the reserved program starts broadcasting next, and a reservation at a broadcast start time of the detected reserved program. A reservation executing means for executing processing;
, It is possible to make a reservation for each program element by using repetition of the program additional information from information with a small number of senders.

Further, the electronic program guide further includes a reservation means for reserving a designated music piece from the electronic program guide, and a reservation execution means for executing a reservation process at the same start time on the day following the reservation, so that, for example, Utilizing the fact that music broadcasts are broadcast repeatedly even on a daily basis, such as digital broadcasting, the start time of the music to be broadcast on the next day can be determined. Recording on a recording medium such as a video or MD.

Further, the reservation executing means compares the electronic program table at the time of reservation with the electronic program table immediately before execution of the reservation, and stops the execution of the reservation when a mismatch is detected, thereby repeatedly switching broadcast contents. Unnecessary reservation execution can be avoided even when the timing and the reservation execution time overlap.

[0031]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG.
FIG. 6 is a diagram showing a reservation processing flow in music units according to the first embodiment of the present invention.

In order to make a reservation for each music piece, the broadcast start time for each music piece must be detected using the sound navigation information. (Here, it is assumed that a program that broadcasts the music to be reserved must be received until the broadcast start time for each music is detected.)

First, when the sound navigation information transmitted by the broadcast is switched (when the music is switched),
Acquire sound navigation information (step S100). At the same time, the time at this point is acquired as the broadcast start time of the music.

Then, a search is made to see if there is any content that matches the content recorded in the sound navigation list information (step S101). If not, the information is additionally recorded in the list information (step S102).

The information recorded at this time is A: music title name information, B: music performer name information, C: music performance time information, and D: music performance start time information. Is added to the music performance start time information, which is not included in the sound navigation information sent in the step (1).

When the reception is just started, only the new sound navigation information is recorded, so that the flow of step S103 is additionally recorded in the sound navigation list information and waits for the next sound navigation information again. When the already obtained sound navigation information is sent by the repetitive broadcast, the music performance start time detected at that time is set as E: latest music performance start time information, and the music piece one cycle earlier recorded is recorded. By taking the difference between the performance start time: D and the latest music performance start time: E, F: Calculate and record the cycle time information of the repeated broadcast (step S104).

Next, the music information registered in the sound navigation list information and not corresponding to the repeated broadcast is deleted (step S105). As a method, when it is detected that the received sound navigation information matches the already registered music, it is determined that the music information with a number lower than the already registered list number does not correspond to the repeated broadcast. And delete it. At the same time, the sound navigation list information for one cycle is shifted so that the first tune of the repetitive broadcast has the list number 1, and is recorded as list information of the tune information for one cycle transmitted in the repetitive broadcast (step S106). ). With the above processing, information necessary for reservation of one cycle of music has been obtained.

Next, when the user requests a program guide for each music piece (step S107), the broadcast start time of each music piece is calculated from the recorded sound navigation list information (step S108).

As a method, the broadcast start time of the nth tune in the list is (F: cycle time of repeated broadcast) * m + (C
1: first performance time of the list) + (C2: second performance time of the list) + ... + (Cn: nth performance time of the list)
When m is set to 0, 1, 2,..., The minimum time at which the calculated broadcast start time exceeds the current time is set as the broadcast start time for each music piece.

Based on the calculated broadcast start time for each music piece, a program guide for each music piece is displayed to make a reservation for each music piece (step S109). Thereafter, normal reservation execution processing (303 to 307 in FIG. 3) is executed (step S110), and the reservation processing is completed (step S1).
11).

FIG. 2 is a flowchart showing a reservation processing flow for each music piece according to the second embodiment. In the present embodiment, for example, in order to make a reservation of a music unit in the same manner as in the first embodiment using the fact that a current digital broadcast Must be detected in advance, and the following procedure is performed.

First, when the sound navigation information transmitted by broadcasting is switched, the sound navigation information is obtained (step S200). At the same time, the time at this point is acquired as the broadcast start time of the music. Then, sound navigation information for a certain number (for example, 30) is additionally recorded as list information. At this time, if the number exceeds 30, the list information is overwritten again from the beginning (step S201).

The information recorded at this time is A: music title name information, B: music player name information, C: music performance time information, and D: music performance start time information. Is added to the music performance start time information, which is not included in the sound navigation information sent in the step (1). This process is repeated, and the latest fixed number of sound navigation list information is always recorded (step S2).
02).

Next, when the user requests a program guide for each music piece (step S203), the broadcast start time of each music piece is calculated from the recorded sound navigation list information (step S204). As a method, the time and minute information of the music performance start time is extracted, and the broadcast start time of the music unit of the next day is set.

Based on the calculated broadcast start time for each music piece, a program guide for each music piece is displayed, and a reservation for each music piece is made (step S205). Thereafter, normal reservation execution processing (steps S303 to S3 in FIG. 3)
307) (step S206), and the reservation process is completed (step S207).

The present invention is not limited to the above embodiment. By comparing the electronic program guide at the time of the reservation with the electronic program guide immediately before the execution of the reservation, unnecessary reservation execution can be avoided even when the switching time of the repeated broadcast content and the reservation execution time overlap.

[0047]

According to the present invention, the fact that a music broadcast is repeatedly broadcasted at a certain time, such as a current digital broadcast, is utilized, and electronic information can be obtained even from information with a small number of senders as program additional information. A program guide can be created easily and in detail.

[Brief description of the drawings]

FIG. 1 is a diagram showing a reservation processing flow in music units according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a reservation processing flow in music units according to a second embodiment.

FIG. 3 is a diagram showing a conventional music broadcast reservation processing flow.

FIG. 4 is a diagram showing an example of using conventional sound navigation information.

FIG. 5 is a diagram illustrating a basic configuration of a digital broadcast receiver.

[Explanation of symbols]

 400 Music title name 401 Music performer name 402 Music performance time 403 Music performance elapsed time 501 Antenna 502 Tuner 503 QPSK demodulation & FEC 504 Transport 505 MPEG audio demodulation 506 Optical audio output 507 Audio D / A 508 MPEG video demodulation 509 Memory 510 Sound Navigation information demodulation 512 Reservation execution processing 513 OSD display processing 514 Video mouse output

Claims (7)

[Claims] 1. A receiving means for receiving broadcasted program additional information, a storage means for storing the received program additional information, a detecting means for detecting a temporal periodicity of the program additional information, A program table creating means for creating an electronic program guide based on the temporal periodicity of information. 2. Receiving means for receiving program additional information to be broadcast, means for storing the received program additional information for each program element constituting a program, and a time period for each program element of the program additional information. A broadcast receiver comprising: a detecting unit for detecting the program characteristic; and a program table generating unit for generating an electronic program table for each program element based on the temporal periodicity of the program additional information for each program element. . 3. Receiving means for receiving additional information of a music broadcast (hereinafter referred to as sound navigation information), storage means for storing the received sound navigation information, and detecting temporal periodicity of the sound navigation information. A broadcast receiver, comprising: a detecting unit; and a program guide creating unit that creates an electronic program guide based on the temporal periodicity of the sound navigation information. 4. A receiving means for receiving sound navigation information of a music broadcast, a storage means for storing the received sound navigation information for each music piece, and a detecting means for detecting a temporal periodicity of the sound navigation information for each music piece. A broadcast receiver comprising: means; and program guide creating means for creating an electronic program guide for each song based on the temporal periodicity of each song in the sound navigation information. 5. A reservation means for reserving a program from the electronic program guide, a shortest time detection means for detecting a shortest time when the reserved program starts broadcasting next, and a reservation at a broadcast start time of the detected reserved program. The broadcast receiver according to claim 1, further comprising: a reservation executing unit that executes a process. 6. A reservation means for reserving a designated song from the electronic program guide, and a reservation executing means for executing a reservation process at the same start time on the next day after the reservation. The broadcast receiver according to claim 4. 7. The reservation execution means compares the electronic program guide at the time of reservation with the electronic program guide immediately before execution of the reservation, and cancels the execution of the reservation when a mismatch is detected. Or the broadcast receiver according to 6.