CN1108787A - Video cassette recorder for recording a caption signal detected by a caption decoder - Google Patents
Video cassette recorder for recording a caption signal detected by a caption decoder Download PDFInfo
- Publication number
- CN1108787A CN1108787A CN94117021A CN94117021A CN1108787A CN 1108787 A CN1108787 A CN 1108787A CN 94117021 A CN94117021 A CN 94117021A CN 94117021 A CN94117021 A CN 94117021A CN 1108787 A CN1108787 A CN 1108787A
- Authority
- CN
- China
- Prior art keywords
- signal
- declarer
- caption
- selector switch
- decoder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
Landscapes
- Television Signal Processing For Recording (AREA)
- Studio Circuits (AREA)
Abstract
The invention discloses a video cassette recorder for recording a caption signal contained in a video signal, which comprises: a first switch used for selectively outputting any video signal; a decoder used for detecting the caption signal received from the first switch; a slide switch used for generating the control signal for recording the caption in such as manner the caption signal can be recorded in the recording circuit; and a second switch used for receiving the output signals from the first switch and the caption decoder, and also used for selecting the output signal from the caption decoder and providing it to the recording circuit to record.
Description
In a broad sense, the present invention relates to videocassette recorder, say, the present invention relates to a kind of videocassette recorder that can write down the declarer signal that is detected by the declarer demoder of installing within it than narrow sense ground.
Usually, common videocassette recorder (" VCR ") comprises a writing circuit, be used for writing down by for example television transmitting station and be connected thereon the such video signal that outside source provided of VCR, for example broadcast television signal and closed-circuit television signal with another.
In order further to strengthen the function of common VCR, there is the people once to propose a kind of declarer VCR that also includes the declarer demoder.This declarer demoder is used for detection packet and is contained in " declarer signal " (comprising the character and picture data) among the video signal that the video source provided.Usually this VCR only shows the video signal that does not have the declarer signal.But when the declarer demoder detected the declarer signal, this VCR just showed the declarer signal and the picture intelligence that are detected by the declarer demoder on screen together.Consequently, this VCR information from interior spectators to the spectators that include hypoacusia that on screen, provide the declarer signal that detects to be comprised easily with written form.A kind of among the above-mentioned declarer VCR has been disclosed in the U.S. Patent No. 5,299,006 of authorizing Seung K.Kim, and this patent is as the application's a part, as a reference.
Yet, bright in general speech VCR has structural limitation, be that declarer demoder and writing circuit are connected to the video source together concurrently and get on, can not be coupled to the feedback mechanism that writing circuit gets on to the declarer signal that is detected by the declarer demoder thereby do not contain, like this, want the declarer signal record that is detected by the declarer demoder is just had any problem in pen recorder.
Therefore, a fundamental purpose of the present invention provides a kind of improved declarer VCR, and it can write down the declarer signal that is detected by the declarer demoder.
According to the present invention, a kind of improved declarer VCR is provided, it contains: one is used for exporting selectively any first selector switch device that contains the video signal of declarer signal; A writing circuit that is used for writing down the output of the first selector switch device; And an output signal that is used for receiving from the first selector switch device, to survey the declarer demoder of the declarer signal that wherein will show.Improvement wherein comprises: an output signal that is used for receiving from the first selector switch device and declarer demoder, and therefrom elect from the declarer output signal of decoder to offer the second selector switch device that writing circuit is write down; And, be used for producing the declarer record and select signal, make that the second selector switch device can be the device that offers writing circuit from the declarer output signal of decoder.
Brief description of drawings:
Above-mentioned purpose of the present invention and other purposes and characteristics will be by becoming obviously clear below in conjunction with accompanying drawing 1 description of a preferred embodiment, this accompanying drawing is a circuit diagram, wherein a part has the block scheme form, is used for explaining the declarer VCR that can write down the declarer signal that is detected of the present invention.
Referring to accompanying drawing, the there shows the block scheme of improved declarer VCR according to the preferred embodiment of the invention.
As shown in the figure, provide a plurality of video signals on first selector switch 10 in being installed in VCR.Can comprise the closed-circuit television signal from various videos source to the video signal that first selector switch 10 provides, broadcast television signal and the regeneration video signal that produces by video reproduction circuit 60.Every kind of video signal all may include the literal composite signal that contains declarer signal and picture intelligence.
First selects selector switch 10 to select a video signal under the control of system controller 80, and system controller 80 provides a plurality of control signals to first selector switch 10, for example closed circuit (LINE), radio and television (TV) and video reproduction (PB) signal.Then, the video signal of being selected by first selector switch 10 is supplied to the first contact a1 of the declarer demoder 20 and second selector switch 40 respectively.
Declarer demoder 20 detection packet are contained in the declarer signal in the video signal that receives by first selector switch 10, then video signal and the declarer signal that detects are offered the second contact a2 and display unit 30 in second selector switch 40 together.Then, when display unit 30 received with together the declarer signal that detects of the picture intelligence of declarer demoder 20, it was with regard to explicit declaration speech or lteral data.
According to the present invention, second selector switch 40 is under the control of slide switch 70, from the output signal of the output signal of first selector switch 10 or declarer demoder 20, select one, the output signal of selecting is offered writing circuit 50, so that record there.
The effect of slide switch 70 is the state of control second selector switch 40 under user's selection.In slide switch 70, there is one first contact P1 to link to each other with power supply (Vcc), there is one second contact P2 to link to each other, has one the 3rd contact P3 to link to each other, also have a slide block 72 between first, second contact P1, P2 and second, third contact P2, P3, to slide with ground with second selector switch 40.
When 72 of slide blocks were between second, third contact P2, P3, slide switch 70 provided the logical zero signal to second selector switch 40.On the other hand, when 72 of slide blocks were between first, second contact P1, P2, slide switch 70 provided the logical one signal to second selector switch 40.
If second selector switch 40 receives the logical zero signal from slide switch 70, it just elects output signal from first selector switch 10 by the first contact a1.Yet if second selector switch 40 receives the logical one signal from slide switch 70, it just elects output signal from declarer demoder 20 by the second contact a2.
According to the present invention, when second selector switch 40 when slide switch 70 receives the logical zero signal, writing circuit 50 will write down the video signal that does not have the declarer signal that detects.On the other hand, when second selector switch 40 when slide switch 70 receives the logical one signal, writing circuit 50 will also write down the declarer signal that detects in the recording picture signal.Like this, declarer VCR according to the present invention has the ability that writes down the declarer signal that is detected by declarer demoder 20 by the action of second selector switch 40.
Although the present invention shows by preferred embodiment and illustrates, but for those skilled in the art that, under the situation that does not depart from defined spirit of the present invention and category, obviously can make various changes and correction by appended claim.
Claims (1)
1, a kind of improved videocassette recorder, it has: one is used for exporting selectively any first selector switch device that comprises the video signal that has the declarer signal; A writing circuit that is used for writing down from the output signal of the first selector switch device; And an output signal that contains the declarer signal that is used for receiving from the first selector switch device, to detect the declarer demoder of declarer signal, it is characterized in that also comprising:
One is used for receiving from the first selector switch device and declarer output signal of decoder, and is used for selectively offer the second selector switch device that writing circuit is write down from the declarer output signal of decoder; And
Be used for producing declarer record and select signal, so that the second selector switch device can be selectively provided device from the declarer output signal of decoder to writing circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930029136A KR970004689B1 (en) | 1993-12-22 | 1993-12-22 | Recording apparatus of captioned video cassette recorder |
| KR93-29136 | 1993-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1108787A true CN1108787A (en) | 1995-09-20 |
Family
ID=19372196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94117021A Pending CN1108787A (en) | 1993-12-22 | 1994-10-10 | Video cassette recorder for recording a caption signal detected by a caption decoder |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH07203355A (en) |
| KR (1) | KR970004689B1 (en) |
| CN (1) | CN1108787A (en) |
-
1993
- 1993-12-22 KR KR1019930029136A patent/KR970004689B1/en not_active IP Right Cessation
-
1994
- 1994-10-07 JP JP6244079A patent/JPH07203355A/en active Pending
- 1994-10-10 CN CN94117021A patent/CN1108787A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR970004689B1 (en) | 1997-04-02 |
| JPH07203355A (en) | 1995-08-04 |
| KR950020399A (en) | 1995-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |