JPH10319999A - Endless sound recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an endless sound recorder reproducing necessary parts by randomly accessing them while recording a voice program which is in being broadcasted. SOLUTION: Multiplexed data including an input voice signal (a) and a video signal (b) are stored in a RAM 7 based on a recording control signal (e) from an endless recording address control circuit 6. When the RAM is made to be in a full-state, the newest multiplexed data are made to be stored by erasing the oldest multiplexed data. A controller 3 is able to instruct a reproduction starting position at the time of reproduction and the multiplexed data are read out by allowing a reproduction address control circuit 5 to impress a read address to the RAM 7. Voice data pass through from a voice D/A converter 9 to an amplifier 12 and a speaker 13 and a voice is reproduced. Video data pass through a video D/A converter 10, a superpose inserter 14 through which calender information and time information (f) are superposed on the video data and a video is reproduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an endless recording device, and more particularly to an endless recording device for recording a broadcasted program in a radio broadcasting station.

[0002]

2. Description of the Related Art Radio and television broadcasting stations are required to store broadcasted programs for, for example, three months. In these broadcasting stations, since a commercial (CM) program broadcast is a source of income, it is also very important to confirm that the CM program has been reliably broadcast. Since the home VTR has been developed, the price has become extremely low, and it is optimal as a recording device for a broadcasted program. Home VT while receiving broadcast program
Recording is continuously performed using R.

Conventionally, as a broadcasted program recording / reproducing apparatus used in a radio broadcast station, as shown in FIG.
R, a recording / reproducing apparatus 15 using a magnetic tape such as a long-time tape recorder is used. In FIG. 2, an input audio signal (program audio being broadcast) a is, for example, VT
The audio signal is recorded on the audio track of R15, and the audio signal being recorded (during reproduction) is amplified 12 and output from the speaker 13. The input video signal b is a signal in the form of a video signal in which the program material number or the like of the audio signal being broadcast is recorded in a video track of the VTR 15, for example, and a signal (program material number) being recorded (reproducing) is recorded. , Etc.) are visually displayed on the video signal display 11.

[0004]

However, the magnetic tape recording / reproducing apparatus 15 needs to rewind the magnetic tape when the operator wants to reproduce and check a certain part of the recorded program, and cannot perform random access. is there. Another problem is that broadcast programs cannot be recorded during playback confirmation.

In Japanese Patent Application Laid-Open No. 63-142775, a portion for inputting a variable sentence by voice at any time and a fixed sentence are digitally stored, and an announcement start command is issued.
The fixed sentence and the variable sentence in the voice data memory are taken out in a predetermined order and sent to the voice reproducing means in the form of a digital signal.
The audio reproducing means converts the signal into an analog signal via a D / A (digital / analog) converter and outputs the signal to the outside. Further, it has been proposed that the audio output is temporarily stored in a memory unit, and an external output is performed in response to an external request.

[0006] This proposal has been proposed for a reception business in a hospital, and edits an announcement from a receptionist to a patient.
The purpose of the announcement is to transmit a plurality of short phrases for each patient, and the necessary announcement contents are selected and reproduced. Therefore, it is not suitable for the purpose of reproducing only a specific portion while recording a long-time audio program.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an endless recording apparatus for recording and reproducing a necessary (specific) part at random while recording an audio program being broadcast.

[0008]

SUMMARY OF THE INVENTION An endless recording apparatus according to the present invention comprises an audio A / D converter for converting an input audio signal into a digital audio signal, and multiplexes the digital audio signal with additional information and stores it endlessly. Memory means; memory control means for reading the digital audio signal from the memory means together with the additional information from an arbitrary address; display for decoding and displaying the digital audio signal read from the memory means together with the additional information Means.

The memory means for storing endlessly sequentially stores data in a semiconductor memory element and overwrites the oldest data with the latest data when it becomes full.

Further, the memory means for storing endlessly sequentially stores data in the semiconductor memory device and pushes out the oldest data in a first-in first-out format when the memory device becomes full to update the latest data. It is characterized by.

Still further, the additional information includes program material number information in a video signal format, and the additional information includes calendar information and time information, and the program material number information in the video signal format. Is superimposed and displayed.

The operation of the present invention is as follows. A digital audio signal obtained by digitally converting an audio program being broadcast is
A recording device that sequentially records data in a RAM (random access memory), and when the memory area is full, the RAM is a recording device that sequentially overwrites data from an initial part (address) endlessly (endlessly). Random access is performed by the method of specifying and reading an address.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of an endless recording apparatus according to the present invention, and the same parts as in FIG. 2 are denoted by the same reference numerals. The broadcasted audio program is shown in FIG.
And recording on the endless recording device according to the present invention in parallel with the recording.

In FIG. 1, an endless recording apparatus according to the present invention includes an audio A / D converter 2 for converting an input audio signal (a signal being broadcast) a into a digital audio signal, and an input video signal (a program material number or the like) as an image. A) an image A / D converter 4 for converting program material numbers and the like into digital data, digital data such as digital audio signals, program material numbers and calendar information, and (current) time information A multiplexer 1 for integrating c into one digital data, a RAM (for example, constituted by a semiconductor memory device and capable of storing digital data for, for example, 10 minutes, 30 minutes, and 1 hour, that is, the information that the operator wants to confirm is usually of this degree. 7 (within the time range).

A demultiplexer 8 for decomposing (decoding) digital data read from the RAM 7 and an audio D / A for converting a digital audio signal into an analog audio signal.
The converter 9 amplifies the (analog) audio signal, and the speaker 1
3 includes an amplifier 12 for outputting audio and a video D / A converter 10 for decoding digital data such as a program material number and creating an analog video signal displaying a program material program and the like.

Further, a calendar and a time signal f are superimposed (superposed) on the (analog) video signal displaying the program material number and the like, a superpose inserter 14 and a video signal display for displaying the video signal displaying the program material number and the like. 11, a controller 3 for the operator to specify a desired image, a reproduction address control circuit 5 for generating a read address of the RAM 7 based on the control of the controller 3, R
An endless recording address control circuit 6 for specifying a recording address of the AM 7 is provided.

The operation of the embodiment of the present invention is similar to the operation of the input audio signal a.
And the input video signal b are converted into digital data by an audio A / D converter 2 and a video A / D converter 4, respectively. The audio data and the video data are multiplexed by a multiplexer 1 together with calendar information and time information. You. The multiplexed data is stored in the RAM 7 based on the recording control signal e from the endless recording address control circuit 6. In this case, the endless recording address control circuit 6 stores the multiplexed data in a free address of the RAM 7 by detecting the recording address signal d of the RAM 7.

When the RAM 7 becomes full, the oldest multiplexed data is erased to store the latest multiplexed data. In addition, R
By shifting the multiplexed data of the AM7, the oldest multiplexed data is erased in a form of pushing out old multiplexed data in a first-in first-out (FIFO) format, and the latest multiplexed data may be stored. Good.

Since the RAM 7 can be reproduced (read) completely independently of recording (storage; writing), the controller 3 reproduces (reads from the RAM 7).
At this time, the program material desired by the operator can be specified, and the reproduction address control circuit 5 operates the controller 3 during reproduction.
The multiplexed data desired by the operator is read by applying a read address to the RAM 7 based on the control of (1). This multiplexed data is converted by the demultiplexer 8
Audio data, video data and calendar information, time information f
The audio data is converted into an analog audio signal by the audio D / A converter 9 and the amplifier 12 and the speaker 1
3 reproduces the sound.

The video data is supplied to a video D / A converter 10.
Is converted into an analog video signal, the calendar information and the time information f are superposed (superimposed) by the superpose inserter 14, and the video (program material number or the like) is reproduced on the video display 11.

[0022]

As described above, according to the present invention, the audio signal is A / D converted together with the additional information (program material number, calendar information, time information) in the form of a video signal to form a digital multiplexed signal. By making it possible to write endlessly to, for example, a semiconductor memory that can be randomly accessed and read it out from an arbitrary address, the search time at the time of reproduction (reading) can be shortened and random access can be made.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional broadcasted program recording / playback apparatus.

[Description of Signs] 1 multiplexer 2 audio A / D converter 3 controller 4 video A / D converter 5 reproduction address control circuit 6 endless recording address control circuit 7 RAM 8 demultiplexer 9 audio D / A converter 10 video D / A converter 11 Video signal display 12 Amplifier 13 Speaker 14 Superpose inserter

Claims (5)

[Claims] 1. An audio A / D conversion means for converting an input audio signal into a digital audio signal, a memory means for multiplexing the digital audio signal with additional information and storing it endlessly, and a digital audio signal from the memory means. Endless recording device, comprising: memory control means for reading out from a given address together with the additional information; and display means for decoding and displaying the digital audio signal read out from the memory means together with the additional information. . 2. The endless memory according to claim 1, wherein said memory means for storing data endlessly sequentially stores data in a semiconductor memory device and overwrites the oldest data with the latest data when it becomes full. Sound recording device. 3. The endless storage means sequentially stores data in a semiconductor memory device and, when full, pushes out the oldest data in a first-in first-out format and updates the data with the latest data. The endless recording device according to claim 1, wherein: 4. The endless recording device according to claim 1, wherein the additional information includes program material number information in a video signal format. 5. The endless recording according to claim 1, wherein said additional information includes calendar information and time information and is displayed in a manner superimposed on said program material number information in a video signal format. apparatus.