CN1874459A - Digital TV set o hard disk, and method of use - Google Patents
Digital TV set o hard disk, and method of use Download PDFInfo
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- CN1874459A CN1874459A CNA2006100521273A CN200610052127A CN1874459A CN 1874459 A CN1874459 A CN 1874459A CN A2006100521273 A CNA2006100521273 A CN A2006100521273A CN 200610052127 A CN200610052127 A CN 200610052127A CN 1874459 A CN1874459 A CN 1874459A
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- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The invention comprises a case, a display and a motherboard having a signal receiver, signal processor and a low frequency amplifier. Said signal processor is a CPU that controls a signal converter, a signal compression/ decompression unit and a mobile hard drive port; said CPU is a small-scale IC used for reading, writing, deleting, editing and searching the data on the hard drive; the data compression uses MPEG4 format. The using method thereof is: after entering into recording state, the CPU saves the digital TV signal collected by the signal collecting unit and compressed with MPEG4 format onto the mobile hard drive through the mobile hard drive port; when it enters into the display state, the CPU outputs the digital signal saved in the hard drive to the display through the low-frequency amplifier.
Description
Technical field
The present invention relates to a kind of television set and using method, particularly can record and play the digital TV set o hard disk and the using method of recording TV program, belong to household appliance technical field.
Background technology
Present television set all is will be by a series of processing of TV signal process of signal collection unit collection by signal processing unit, output to the low frequency amplifying unit and show output for display, they do not possess the program of recording setting and play the function of program recording, thereby like the spectators that see the special time period program to bring a lot of regretting to great majority, they also may incur loss through delay working or study because of watching TV programme continuously, cause very big influence for work or study.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, and a kind of digital TV set o hard disk of program recording of recording and play is provided.
Another object of the present invention is to provide a kind of setting of the programme information to special time and specific channel, records and play the using method of the digital TV set o hard disk of program recording thereby reach.
The objective of the invention is to realize by the following technical solutions, it mainly comprises casing, display and is integrated in signal collection unit, signal processing unit, low frequency amplifying unit on the main circuit board, it is characterized in that described signal processing unit is a central processing unit, on main circuit board, also be integrated with signal conversion unit, Signal Compression decompression unit and a portable hard drive interface by central processing unit control.
Described central processing unit is one can be realized hard disk is carried out the deletion of reading and writing, data, simple editting function and the Small Scale Integration of program recording retrieval, and the MPEG4 mode is adopted in data compression.
A kind of using method of the digital recording of hard disk as mentioned above television set, it is when recording, the digital television signal that described central processing unit is collected the signal collection unit is stored in the portable hard drive of portable hard drive interface after the MPEG4 compression, during projection, the digital signal that described central processing unit will be stored in the portable hard drive outputs to the display demonstration through the low frequency amplifying unit.
When the TV signal of collecting is analog signal, the anolog TV signals that described central processing unit is collected the signal collection unit are converted into digital signal through the signal conversion unit by analog signal, after the MPEG4 compression, be stored in the portable hard drive of portable hard drive interface again, during projection, described central processing unit will be stored in the digital signal elder generation's decompress(ion) in the portable hard drive after the signal conversion unit is converted into analog signal output by digital signal, outputs to display through the low frequency amplifying unit and shows.
Described recording is the information of want recorded program channel or signal frequency, time started, time span to be input in the central processing unit with menu mode to store earlier, instructs and imports and can finish by remote controller.
The invention belongs to improvement to existing television set, it is mainly on the basis of existing television set, having added memory device is the compression storage of portable hard drive and signal and the decompress(ion) broadcast unit of signal, thereby, made existing TV set and recorded the program of oneself liking and recorded the function of watching again after finishing, compared with prior art, the present invention has practical and records than video tape recorder, easy for operation in addition, characteristics such as cost is low and memory space is big.
Description of drawings
Fig. 1 is that structure of the present invention is formed schematic diagram.
Fig. 2 is that another kind of structure of the present invention is formed schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done detailed explanation:
Digital TV set o hard disk of the present invention mainly comprises casing, display and is integrated in signal collection unit 1, signal processing unit 4, low frequency amplifying unit 10 and remote control inductor on the main circuit board, described signal processing unit 4 is a central processing unit, on main circuit board, also be integrated with signal conversion unit 5,8, Signal Compression decompression unit 6,9 and a portable hard drive interface 7 by central processing unit control.Described central processing unit is one can be realized hard disk is carried out the deletion of reading and writing, data, simple editting function and the Small Scale Integration of program recording retrieval, and the MPEG4 mode is adopted in data compression, as shown in Figure 1.Described signal collection unit 1 outputs to low frequency amplifying unit 10 with the signal of collecting through intermediate frequency amplifier circuit 2 and low frequency signal testing circuit 3 for the TV signal tuner, play-overs program in order to TV.
The using method of described hard disk digital recording television set is: when recording, the TV signal that described central processing unit is collected the signal collection unit is converted into digital signal through the signal conversion unit and is stored in after compression in the portable hard drive of portable hard drive interface by analog signal, during projection, described processor will be stored in the digital signal elder generation's decompress(ion) in the portable hard drive after the signal conversion unit is converted into analog signal output by digital signal, outputs to display through the low frequency amplifying unit and shows.
The using method of described hard disk digital recording television set is that described recording is earlier the information of want recorded program channel or signal frequency, time started, time span to be input in the processor with menu mode, store, the instruction input can be finished by remote controller.
The record of data of the present invention: under the control of central control circuit, from the low frequency part (comprise vision signal and audio signal) of television set after intermediate frequency amplifies, analog signal is converted to digital signal by analog signal revolution word signal converter, again by data compression partly with it boil down to MP4 form (also can adopt other compress mode), be stored in the hard disk with the MP4 form, thus the record of realization data.
The playback of data of the present invention: under the control of central control circuit, reading corresponding data from the hard disc data memory, behind data decompression part decompress(ion), be converted to analog signal (comprising vision signal and audio signal) by digital signal revolving die analog signal transducer again, send into low-frequency amplifier circuit and amplify, make it to realize the playback of data.
Writing of recording playback instruction of the present invention: as display, write in the command memory of processor with menu mode by remote controller with video screen.Command memory should can be stored the instruction more than 10 simultaneously, the mode of instruction can be the performance recording instruction of single special time, also can be the performance recording instruction of special time every day, or the performance recording instruction etc. of special time weekly, instruction can be deleted, and also can revise.The key property of hard disk digital recording television set is a timing recording function of realizing television image by preestablishing, as recording a video to the TV programme of specific period and specific channel, so that the end user can be by preestablishing the admission that realizes programs of interest, and the powerful capacity of hard disk can be supported 50 to 100 hours TV programme.
The present invention is integrated in the power supply of signal conversion unit, Signal Compression decompression unit and the portable hard drive interface controlled by processor on the main circuit board and is partly implemented by the television set power supply, when carrying out timing and record a video, by specific circuit design, can only make tuner, the intermediate frequency of hard disk digital recording television set amplify part, low frequency signal testing circuit and central control circuit, analog signal revolution word signal converter, data compression partly, the hard disc data memory is accepted the power supply power supply, other partly all is in resting state, thereby realizes electrical energy saving.Consider writing the protection of instruction in advance, the clock and the command memory of hard disk digital recording television set are powered separately by a rechargeable battery, thereby when occurring having a power failure for some reason, can guarantee time and instruction unlikely losing in a few hours.Television set should be in holding state for a long time in principle.
During design, the independence that keeps hard disk, and can be when not using, hard disk can be extracted out from hard disk digital recording television set, use as portable hard drive, and available USB interface and computer connection, thereby carry out higher editor on computers, also can exchange, to realize sharing of program resource with the hard disk of other hard disk digital recording television set.
Concerning liquid crystal TV set (LCD) and the contour terminal number word of plasma TV (PDP) TV, because TV signal has adopted the digital form transmission in the machine, therefore, when recording and play TV programme, can reduce analog signal revolution word signal converter, two links of digital signal revolving die analog signal transducer, see Fig. 2; In order to promote clearness, compress mode can adopt JEPG-2 (DVD) mode to carry out, and also can adopt other compress mode.
The function of analog signal revolution word signal converter is that TV signal (comprising vision signal and audio signal) is converted into digital signal by analog signal, come down to an integrated circuit, can adopt Texas Instrument (TI) to announce a 14 170MSPS (1,000,000 samplings of per second) analog to digital converter (ADC)-ADS5545 of releasing.
Data compression function partly is that digital signal is compressed, to dwindle memory capacity, in fact also be an integrated circuit, IME 6400 integrated circuit blocks that can adopt Korea S IN TiME company to produce, add an embedded type CPU kernel, thereby reach the purpose of data compression.
Data decompression and digital signal revolving die analog signal transducer are also realized in the mode of integrated circuit.
It is to be noted: the hardware (as the MP4 compression module IME 6400 of Texas Instrument (TI) analog to digital converter (ADC)-ADS5545 and the production of Korea S IN TiME company) that adopts different production firms to provide, because they are to the requirement difference of operational environment, in the function design, there is not specific aim yet, so they are combined the effect that is produced will not be optimum, when being used for large-scale industrial production, can be with central control circuit, analog signal revolution word signal converter and data compression are partly looked as a whole, the integrated package of corresponding requirements of having developed a new set, so that the combination between them reaches optimum, also can reduce production costs significantly simultaneously.Therefore each unit of the present invention or each circuit are routine techniques, and those skilled in the art can implement the present invention easily understanding on the content basis of the present invention.
Hard disc data player: be a kind of digital information of storing in the hard disk that reads,, be reduced to the equipment of in general television set, playing after the analog signal, be used for the broadcast of program in general television set that hard disk is enrolled through decompressing.
Claims (5)
1, a kind of hard disk digital recording television set, mainly comprise casing, display and be integrated in signal collection unit, signal processing unit, low frequency amplifying unit on the main circuit board, it is characterized in that described signal processing unit is a central processing unit, on main circuit board, also be integrated with signal conversion unit, Signal Compression decompression unit and a portable hard drive interface by central processing unit control.
2, hard disk digital recording television set according to claim 1, it is characterized in that described microcomputer central processing unit is one and can realizes hard disk is carried out the deletion of reading and writing, data, simple editting function and the Small Scale Integration of program recording retrieval, the MPEG4 mode is adopted in data compression.
3, a kind of using method of hard disk digital recording television set according to claim 1 and 2, it is characterized in that: when recording, the digital television signal that described central processing unit is collected the signal collection unit is stored in the portable hard drive of portable hard drive interface after the MPEG4 compression, during projection, the digital signal that described central processing unit will be stored in the portable hard drive outputs to the display demonstration through the low frequency amplifying unit.
4, a kind of using method of hard disk digital recording television set according to claim 1 and 2, it is characterized in that: when recording, the anolog TV signals that described central processing unit is collected the signal collection unit are converted into digital signal through the signal conversion unit by analog signal, after the MPEG4 compression, be stored in the portable hard drive of portable hard drive interface again, during projection, described central processing unit will be stored in the digital signal elder generation's decompress(ion) in the portable hard drive after the signal conversion unit is converted into analog signal output by digital signal, outputs to display through the low frequency amplifying unit and shows.
5, according to using method according to claim 3 or 4 described hard disk digital recording television sets, it is characterized in that described recording is the information of want recorded program channel or signal frequency, time started, time span to be input in the central processing unit with menu mode to store earlier, instruct and import and to finish by remote controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100521273A CN1874459A (en) | 2006-06-23 | 2006-06-23 | Digital TV set o hard disk, and method of use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100521273A CN1874459A (en) | 2006-06-23 | 2006-06-23 | Digital TV set o hard disk, and method of use |
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| Publication Number | Publication Date |
|---|---|
| CN1874459A true CN1874459A (en) | 2006-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100521273A Pending CN1874459A (en) | 2006-06-23 | 2006-06-23 | Digital TV set o hard disk, and method of use |
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| Country | Link |
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| CN (1) | CN1874459A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212627B (en) * | 2006-12-28 | 2012-02-29 | 海尔集团公司 | System and method for implementing PVR function in digital TV set |
-
2006
- 2006-06-23 CN CNA2006100521273A patent/CN1874459A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212627B (en) * | 2006-12-28 | 2012-02-29 | 海尔集团公司 | System and method for implementing PVR function in digital TV set |
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