KR100346919B1 - Real time automatic continuous memorizing and playback method of a signal, and system/device of the same - Google Patents

Abstract

The present invention provides a device capable of continuously storing, reproducing, searching, editing, preserving, and extinguishing analog and digital signals (hereinafter, referred to as "signals") including audio / video signals in real time without prior operation. A method, comprising: an input means for inputting a signal and an operation of automatically storing, reproducing, searching, editing, preserving, and deleting a signal input in real time from the input means to process a signal input from the input means; Control means; Storage means for automatically and continuously storing the signal processed by the control means in digital form; Output signal selecting means for selecting and outputting a signal input from said input means and a signal stored in said storage means; And an output means for outputting one signal selected by the output signal selection means to the outside.

Description

REAL TIME AUTOMATIC CONTINUOUS MEMORIZING AND PLAYBACK METHOD OF A SIGNAL, AND SYSTEM / DEVICE OF THE SAME}

The present invention relates to a method and apparatus for storing and reproducing a signal, and an integrated circuit using the same, and to a method and apparatus for automatically storing and reproducing a signal in real time and an integrated circuit using the same.

There are a number of devices that can store and play existing audio / video signals. Their kind is as follows.

First, there are wired / wireless telephones and answering machines with built-in magnetic tape or memory.

Second, there is a magnetic tape recorder, an optical disk storage recorder, and a computer hard disk system that can be connected to a TV / radio receiver and an external input device.

Third, there is a voice recording device using an IC chip.

Fourth, there are other video / audio storage devices to which wired and wireless terminal devices are attached.

Such audio / video recording and reproducing apparatuses store or reproduce sound and video signals transmitted only when the user selects the storage mode or the reproduction mode.

The conventional audio / video signal storage and playback apparatus has the following problems.

That is, if the user does not select a storage mode in advance, there is a limit that cannot reproduce a signal that has been delivered in real time, and even if the storage mode is selected, the signal continuously transmitted due to the capacity limitation of the storage medium is continuously. I couldn't keep saving.

That is, if you are currently listening to or watching a radio or TV and want to listen to or watch the required part of the part you have already listened to or watched again, you cannot listen to or watch the part again unless the user selects the save mode in advance. .

The present invention has been made to solve such a problem, so that even if there is no separate operation for storage in advance to always store analog and digital signals including audio / video signals for a certain time continuously so that they can be reproduced whenever necessary It is an object of the present invention to provide a method and apparatus for automatic continuous storage / reproduction of real time signals and an integrated circuit using the same.

1 is a block diagram of a device for automatically storing and reproducing a real-time signal according to the present invention.

2 is a block diagram of the control means in FIG.

FIG. 3 is a block diagram illustrating a first signal processor of FIG. 2.

4 is a block diagram illustrating a second signal processor of FIG. 2.

Explanation of symbols for main parts of the drawings

1: signal input means 2: signal output means

3: output signal selection means 4: signal storage means

5: control means

51: first signal converter 52: function selector

53: second signal conversion unit 54: signal compression unit

55 signal extension 56 control unit

In order to achieve the above object, the present invention provides a method and apparatus for automatically storing and reproducing a real-time signal, and automatically storing, reproducing, searching, editing, and preserving a signal input in real time from the input means and the input means. And control means for processing the signal input from the input means by controlling the compression / extension of the signal if necessary and converting the input signal into a digital signal. Storage means for automatically and continuously storing the signal processed by the control means in digital form; Output signal selecting means for selecting and outputting all or part of a signal input from the input means and a signal stored in the storage means; It is characterized in that it comprises an output means for outputting all or part of the signal selected by the output signal selection means to the outside.

In addition, the signal automatic continuous storage and regeneration method of the present invention for achieving the above object is output to the outside through the output means in accordance with the control operation of the control means when a predetermined signal is input through the input means from the outside, If the signal is not an analog signal or a digital signal that can be stored by a conversion operation of an analog / digital converter or a first converter, the signal is converted into a digital signal that can be stored, and the digital signal is stored in real time within a storage capacity of a predetermined storage means. And converting the digital signal into an analog signal by a conversion operation of a digital / analog converter or a second converter when a reproduction key operation of the function selection unit is performed from the state in which the digital signal is stored in the storage means. Characterized in that it comprises the step of output through the output means .

The automatic real time signal storage and reproducing apparatus of the present invention as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a real-time continuous signal automatic storage and reproducing apparatus according to the present invention, Figure 2 is a block diagram of the control means in Figure 1, Figure 3 is a block diagram of the first signal conversion unit in FIG. 4 is a block diagram illustrating the second signal conversion unit in FIG. 2. In the figure, the solid line indicates the flow of signals and the dotted line indicates the flow of control.

The automatic real-time signal storage and reproducing apparatus of the present invention, as shown in Figure 1, the input means (1) for inputting an external signal through a large wire / wireless, and the signal input in real time from the input means (1) Control to process the signal input from the input means 1 by controlling the automatic storage, playback, search, editing, preservation and deletion, and the compression / extension of the signal as needed and the conversion operation of converting the input signal into a digital signal. Means 5, a storage means 4 for automatically and continuously storing the signal processed by the control means 5 in digital form, the signal input from the input means 1 and the storage means 4 And an output signal selecting means (3) for selecting and outputting one of the stored signals and an output means (2) for outputting one signal selected by the output signal selecting means (3) to the outside. .

Here, the storage means 4 may use any storage medium capable of storing data by a first in first out (FIFO) method in a predetermined time unit or a predetermined size unit.

In addition, the control means 5, as shown in Fig. 2, the first signal conversion unit 51 for converting the signal input from the input means 1 into an appropriate signal according to the type of the input signal, and the first 1 a signal compression unit 54 for compressing the signal converted by the signal conversion unit 51 when necessary, a signal expansion unit 55 for decompressing the signal compressed by the signal compression unit 54 when necessary, and A second signal converter 53 for converting the decompressed signal from the signal extension unit 55 into an appropriate signal for transmission to the output signal selecting means 3, and a signal stored in the storage means 4; A function selection unit 52 for selecting processes such as editing, partial playback, repeated playback, automatic continuous storage cancellation, and deletion, and controlling the flow of the signal input from the input means 1, (4) Control operations such as playing, editing, searching, deleting, and preserving signals stored in And a control unit for controlling the first conversion unit 51, the second signal conversion unit 53, the signal compression unit 54, the signal extension unit 55, the function selection unit 52, and the like. And 56.

In addition, the first signal conversion unit 51, as shown in Fig. 3, the analog / digital converter 511 for converting the signal input from the input means 1 to a digital signal and the input means, A first converter 512 for converting the signal input in (1) into a digital signal that can be stored, and the analog / digital signal according to the type of the signal input from the input means (1). And a first selector 513 for selecting one of the transducers 511 and the first transducer 512. In addition, when the signal input from the input means 1 is a digital signal that can be stored, it is stored in the storage means 4 directly without being converted by the first signal converter.

In addition, as shown in FIG. 4, the second signal converter 53 includes a digital / analog converter 531 for converting a digital signal into an analog signal when the signal output to the output means 2 is an analog signal; A second converter 532 for converting the signal to be output to the output means 2 into the required signal, and the digital signal according to the form of the signal output to the output means 2; And a second selector 533 for selecting one of the signals from the / analog converter 531, the second converter 532, and the signal extension unit 55.

The method and apparatus for automatic real-time signal storage and regeneration of the present invention configured as described above and the operation of an integrated circuit using the same will be described below.

First, the input means 1 receives a signal from the outside by wire / wireless, and transmits the received signal to the output signal selection means 3 and the control means 5. The output signal selecting means 3 selects all or part of a signal input from the input means 1 and a signal processed by the control means 5 and stored in the storage means 4 to output the output means. Amplify to (2) and output. When the signal input from the input means 1 is selected and output to the output means 2, the signal input from the input means 1 is output to the output means 2 while the storage means 4 is output at the same time. ) Can be automatically saved in real time.

The control means 5 processes the signal input from the input means 1 and stores it in the storage means 4, and also the signal input from the input means 1 and stored in the storage means 4. The signal is processed to amplify and output the signal to the output means (2).

As shown in FIG. 2, the first signal converter 51 converts the digital signal into a digital signal that can be stored in the storage means 4 according to the form of the signal input from the input means 1. That is, when the signal input from the input means 1 is an analog signal, as shown in FIG. 3, the analog / digital converter 511 converts the signal into a digital signal that can be stored. In addition, when the signal input from the input means 1 is not a digital signal that can be stored, the first converter 512 converts the signal into a digital signal that can be stored. In addition, when the signal input from the input means 1 is a digital signal that can be stored, it is directly stored in the storage means 4. At this time, the analog-to-digital converter 511, the first converter 512 and the storage directly to the storage means 4, etc. are selected and processed by the first selector 513.

In addition, when it is necessary to compress the digital signal inputted from the input means 1 and the digital signal converted by the first signal converter 51 and store it in the storage means 4, the signal compressor 54 Compress the digital signal. When the digital signal is not compressed, the digital signal is directly stored in the storage means 4.

When the signal compressed by the signal compression unit 54 is decompressed and amplified by the output means 2, the signal is decompressed by the signal extension unit 55.

As shown in FIG. 4, when the form of the signal amplified by the output means 2 and output is an analog signal, the signal stored in the storage means 4 and the digital signal decompressed by the signal extension unit 55 are decoded. The digital-to-analog converter 531 converts the analog signal and outputs the analog signal to the output means 2. In addition, when the form of the signal to be amplified and output by the output means (2) is not a digital signal, the signal stored in the storage means (4) and the digital signal decompressed by the signal extension unit 55 The second converter 532 converts the signal into a non-digital signal and outputs the converted signal to the output means 2. If the form of the signal output to the output means 2 is a digital signal, the output means directly with the digital signal stored in the storage means 4 and the digital signal decompressed by the signal extension unit 55 if necessary ( Output to 2). At this time, the signal output to the digital-to-analog converter 531, the second converter 532, and the output means 2, etc. are selected by the second selector 533 and processed.

In addition, the storage means 4 stores the signal as much as the capacity of the storage means 4 in real time, and automatically stores the digital data by the FIFO method in a predetermined time unit or a predetermined size unit. The data stored in the storage means 4 can be reproduced, searched, edited, saved and deleted under the control of the control means 5 and can be stored in connection with an existing storage device.

In addition, the functions of reproducing, searching, editing, storing, and deleting data stored in the storage means 4 may be input to the control means 5 by the user selecting a function in the function selection unit 52.

In addition, the function selection unit 52 is an automatic continuous storage canceling function that can cancel the operation of the automatic continuous storage of the signal input to the input means (1) in addition to the above function, input to the input means (1) A reproduction function for selecting and reproducing a signal and a signal stored in the storage means 4, a conversion function for converting a signal input to the input means 1 into a digital signal if necessary, and optionally compressing and compressing the signal if necessary Provides signal processing function to release.

An example of a real-time signal automatic continuous storage / playback method and apparatus of the present invention and an integrated circuit using the same will be described below.

First, all the devices with a built-in radio function, when you want to listen to the content broadcasted while listening to the radio, it was not possible to hear again if not previously stored, but the real-time signal automatic continuous storage / playback method of the present invention and If you have a device, you can easily hear it again.

In addition, wired / wireless communication devices (wireless phones, walkie-talkies, radios, cellular phones, pagers, satellite terminals, etc.) can replay transmission and reception up to a certain time, and transmit the signals transmitted in real time to a radio, mobile phone, pager, and satellite terminal up to a certain time. It can be reproduced, searched, edited, saved and deleted by any operation, and can be stored in connection with a conventional storage device.

In all devices with a built-in TV reception function, when the user wants to watch the broadcasted contents again while watching TV, the user could not see it again unless it was previously stored. However, when using the method and apparatus for automatic continuous playback / storage according to the present invention. You can easily see and hear it again.

The same applies to cameras, recorders, and other detectors (sound, vibration, infrared, high frequency).

In other words, in order to shoot a subject, the camera takes a series of preparations to prepare the camera after being kept in a standby state.In the case of a stationary subject, there is sufficient preparation time and allowance, and the shooting proceeds without difficulty. Accurately captured and clear pictures can be obtained, but moving images can miss important moments because of the preparation process if they are not captured at the moment. However, when using the method and apparatus for automatic real-time audio / video signal automatic continuous storage / playback of the present invention, even when a series of preparation procedures, that is, power input (if the power supply is present), film status check, etc. When the camera is focused, the subject is stored as a digital signal for a certain amount of time, so that important moments can be captured without complicated camera operation.

In the case of the recorder and various detectors, important moments that are easily missed can be automatically stored for a certain period of time in the past.

In addition, all devices having a digital memory can be applied to the signal automatic continuous storage and reproducing apparatus of the present invention. In other words, the analog and digital signals, including all information lost and lost, if not manipulated by users, and all video and audio signals are always stored for a certain period of time. The scope of application of the present invention, which makes it possible, can be regarded as being wide.

As described above, the method and apparatus for automatically storing and reproducing analog and digital signals including real time audio / video signals according to the present invention, and integrated circuits using the same, have the following effects.

That is, the real-time signal automatic continuous storage / reproducing method and apparatus of the present invention always stores the input signal continuously for a predetermined time even without a separate operation for storing in advance, real-time sound / image that has been transmitted before if necessary Analog and digital signals, including signals, can be played back, searched, edited and deleted at any time.

This has the effect of allowing the user to maximize the utilization of the information by making it easy to reuse the information delivered in real time, which has been easy to lose until now.

Claims (7)

Input means for inputting an external signal through wired / wireless; In the input means by controlling the operation of automatically storing, reproducing, searching, editing, storing, and deleting the signals input in real time from the input means and compressing / extending the signals as needed and converting the input signals into digital signals. Control means for processing an input signal; Storage means for automatically and continuously storing the signal processed by the control means in digital form; Output signal selecting means for selecting and outputting one of a signal input from said input means and a signal stored in said storage means; And an output means for outputting one signal selected by the output signal selection means to the outside. The method of claim 1, The control means includes a first signal conversion unit for converting the signal input from the input means into a suitable signal according to the type of the input signal; A signal compressor for compressing the signal converted by the first signal converter if necessary; A signal expansion unit for decompressing the signal compressed by the signal compression unit if necessary; A second signal converter converting the decompressed signal from the signal extension into an appropriate signal for transmission to the output signal selecting means if necessary; A function selection unit for selecting processes such as editing, partial playback, repeated playback, automatic continuous storage cancellation, and deletion of the signals stored in the storage means; Controlling the flow of signals input from the input means, controlling operations such as reproducing, editing, searching, deleting, and preserving signals stored in the storage means; and further, the first converting portion and the second signal converting portion. And a control unit for controlling the signal compression unit, the signal extension unit, the function selection unit, and the like. The method of claim 2, The first signal converter comprises: an analog / digital converter for converting a signal input from the input means into a digital signal; A first converter converting the input signal from the input means into a digital signal that can be stored when the signal is not a digital signal in a form that can be stored; And a first selector for selecting one of the analog / digital converter and the first converter according to the type of the signal input from the input means. The method of claim 2, The second signal converting unit converts a digital signal into an analog signal when the signal output to the output means is an analog signal; A second converter for converting the digital signal into a non-digital signal when the signal to be output to the output means is not a digital signal; And a second selector for selecting one of the digital / analog converter and the second converter according to the type of the signal output to the output means. When a predetermined signal is input from the outside through the input means, the output signal is output to the outside through the output means according to the control operation of the control means, and the signal can be stored as an analog signal and by the conversion operation of the analog / digital converter or the first converter. Storing the digital signal in real time within a storage capacity of a predetermined storage means after converting it into a digital signal that can be stored if the signal is not in a digital form; When the reproduction key operation of the function selection unit is performed from the state in which the digital signal is stored in the storage means, the digital signal is converted into an analog signal by a conversion operation of the digital / analog converter or the second converter, and then output through the output means. Real-time signal automatic continuous storage and playback method comprising the steps. The method of claim 5, The storing step includes a compression step of compressing a signal input from the input means, if necessary; And a first conversion step of converting the signal inputted from the input means into a signal which can be stored in the storage means. The method of claim 5, The output step may include decompressing a signal compressed in the compression step if necessary; And a second conversion step of converting the signal into an output signal which can be output to the output means.