KR960007956B1 - Reservation method and system in digital recording device - Google Patents

Abstract

a recording reservation function adopting an EEPROM in order to input and to correct the ID of a song to be recorded with a reservation key as seeing an LCD, and in order to preserve the reserved content in case of power failure; a function to select a song automatically by seeing the ID of the song to be recorded through a digital audio interface; and a micom controlling the operation of a system to perform the above functions.

Description

Reservation Method and System in Digital Recording Equipment

1 shows a prior art.

2 is a view for clarifying an embodiment of the present invention.

3 is a flow chart according to the present invention.

The present invention relates to a reservation method and system for a digital recording device, and more particularly, to a reservation method for a digital recording device for automatically selecting and reserving a song that matches a standard identification number reserved from a music input through a digital audio interface. It's about the system.

In general, digital recording devices include DCC, MD, DAT, etc., and digital source broadcasting devices include CD, HDTV, and digital satellite broadcasting systems. The reservation recording function doubles the response of consumers if applied to any of the above systems. You can.

Looking at the basic configuration relationship for reservation recording in a conventional digital recording device, the recording key 10 for determining whether to record and the microcomputer 20 for controlling the operation of the circuit in accordance with the on / off state of the recording key 10 ), A digital signal generator 30 for providing digital music, a digital audio interface 40 for reading additional information from the digital signal generator 30 and providing it to the microcomputer 20 and receiving an audio signal; And a source coder 50 for processing audio signals, etc., a channel coder 60 with an error correction code, and a channel section 70 which is a recording medium such as a tape or a disk. The digital audio interface unit 40 will be understood in more detail by looking at EIAJ's publication CP-140, published in September 1987.

Referring to the operation relationship below, when the recording key 10 is pressed down, the digital audio interface unit 40 separates the incoming signal from the digital signal generator 30 into pure audio signal and additional information under the control of the microcomputer 20. do. The additional information is read by the microcomputer 20 to generate a signal for controlling various blocks when recording an audio signal. The audio signal from the digital audio interface 40 is compressed by the source coder 50 in accordance with the purpose of the entire system, and the channel coder 60 recovers the original signal even if the signal is damaged during playback. An error correction code is attached so that recording is performed in the channel unit 70, which is a recording medium such as a tape or a disk.

According to the related art, if a user wants to record a desired song, the user must press the record key 10 whenever the desired song is released while connecting the digital source, or program the digital source in order to continue recording. Accordingly, an object of the present invention is to provide a digital reservation recording method and apparatus capable of automatically selecting and reserving recordings without having to observe the digital recording apparatus by connecting only a digital source and inputting identification numbers of songs to be recorded.

In order to accomplish the above object, the present invention provides an EEPROM for inputting and modifying an identification number of a desired song to be recorded with a reservation key while watching the LCD, in order to automatically select and schedule recording in a digital recorder, and to preserve reservation contents even in a power failure. It is composed of a recording reservation function that employs a digital audio interface, identification of a song to be recorded through the digital audio interface, a function of automatically selecting a song, and a microcomputer that controls the operation of the system to perform the above functions. .

While the reservation status is displayed on the LCD, the reservation list of the EEPROM can be updated by inputting, modifying, and deleting the reservation list by the microcomputer. The system is controlled by the microcomputer and judged to match with automatic selection and reservation recording.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, the same function as possible in the drawings using the same reference numerals.

FIG. 2 is a circuit diagram according to the present invention, and FIG. 2 has the same components as those of FIG. 1 as shown in the figure. Unlike FIG. A reservation key unit 220 for inputting reservation information that can be deleted, an LCD 210 for displaying a reservation state input from the reservation key unit 220 connected to the microcomputer 20, and a connection with the microcomputer 20; And E ² PROM 230 storing reservation contents.

3 is a flow chart according to the present invention, the first step of receiving the identification number when the recording is not the recording key and the normal recording when the recording is not scheduled recording by confirming that the recording recording from the recording key input, the identification of the first process A second step of confirming whether the number corresponds to the recording order when the number indicates a reserved song, and a third step of sequentially setting the reserved recording mode, making a scheduled recording, and releasing the recording mode when the recording sequence is correct in the second step. When the identification number input of the first process is not a reserved song and the recording order is not correct, a fourth process of reservation programming is performed if the reservation key is on.

Therefore, a specific embodiment of the present invention will be described in detail by creating the second and third views, by checking in the microcomputer 20 whether the recording key 10 is pressed in the process of FIG. When the recording key is turned on in step 320, the normal procedure is recorded in step 330, and the process is rechecked. When the recording key is not the key in step 320, the microcomputer 20 reads the identification number in step 340. Because you can't make a scheduled recording without pressing the record key.

The specific reason for this is that the basic configuration of the signal handled by the digital audio interface unit 40 is a subframe of EIAJ issuance (see CP-140: Digital Audio Interface). In the case of 32 time slots, if only 16 slots of audio samples are used, 8 slots of 24 slots and 1 U-fold slot of the flag, that is, the latest 9 slots / subframes, can be used for recording additional information. When the identification number is sent from the digital source by using the margin, it can be read by the microcomputer 20 through the digital audio interface unit 40. In the configuration of the identification number, the spare slots of each subframe are collected into N bits, and the N bits are divided into a plurality of country numbers, composer numbers, and work numbers. In step 340, the identification number is read, and in step 350, it is checked whether there is a match among the reserved songs in the EEPROM 230 with respect to the identification number. In step 350, if the recording sequence is determined in step 360 when it matches the reserved song, the procedure goes to step 362 to check whether the reservation key is on. However, if the recording order is correct (370), the process goes to. When it is not about the reserved song or the recording order in steps 350 and 360, the check whether the reservation key 220 is turned on is also performed in step 362. If it is not pressed here, the process returns to 320. However, if the reservation key is on, the reservation contents are changed and added to the microcomputer 20 according to the reservation key 220 while the LCD 210 displays the reservation status contained in the EEPROM 220 for reservation programming in step 364. The contents of the EEPROM 230 can be updated by deleting them. The upper extremity reservation content can determine the identification number of the song to be recorded, the recording order, the number of recordings, and the like, and when the reservation ends, the process returns to step 320 again.

When the recording order is set, in step 370, if the reserved recording mode is set in order to prevent normal recording, the reserved music is recorded in the next step 380, and the operation of recording the audio signal is the same as in the prior art.

When the scheduled recording is finished in step 390, the scheduled recording mode is released, and the number of recordings is reduced by one, and the remaining number is 0, the number of the reservations is subtracted from the reservation list.

Those skilled in the art can check the reservation status using other display devices such as LEDs or TFTs instead of the LCD 210 without departing from the basic definition of the present invention. The number of keys or configuration of the reservation key 220 may be changed to perform the operation, and other memory such as SRAM may be used instead of the EEPROM 230, and the selection and reservation function of the microcomputer 120 according to the present invention may be different from the prior art. An additional circuit is used for the conventional microcomputer 20, and the items of the reservation list may be configured differently.

By applying the present invention as described above, by selecting the standard identification number of the song to be recorded without having to keep listening to select and record only the desired song from the digital source, it is possible to automatically select and reserve the desired song in order or randomly. If you reserve the song number in this recorder without programming several digital sources separately, you can record the desired song even if you change the digital source in various ways. The reservation status can be changed arbitrarily, and reservation contents can be stored even in the event of a power failure.

Claims (2)

In the reservation method of the digital recording device, the first step of receiving a normal recording when the recording is not scheduled recording by confirming that the scheduled recording from the recording tee input of the digital recording device, and inputting the identification number when the recording key is not; The second process of confirming whether the identification number of the first process indicates a reserved song and conforming to the recording order, and then sets the reserved recording mode in order to match the recording order in the second process, makes a scheduled recording, and releases the recording mode. And a fourth step of performing reservation programming if the reservation key is in an on state when the identification number input of the first step is not a reserved song and the recording order is not correct. Digital recording apparatus having recording key 10, micom 20, digital signal generator 30, digital audio interface 40, source coder 50, channel coder 60, channel 70 In the reservation circuit of the reservation key unit 220 connected to the microcomputer 20 for inputting, modifying, and deleting reservation information, and the microcomputer 20 is connected to the reservation key unit 220 to be inputted. And a display system (210) for displaying a reservation status and an EEPROM (230) connected with the microcomputer (20) to store reservation contents.