GB2128796A - Signal recording - Google Patents
Signal recording Download PDFInfo
- Publication number
- GB2128796A GB2128796A GB08229025A GB8229025A GB2128796A GB 2128796 A GB2128796 A GB 2128796A GB 08229025 A GB08229025 A GB 08229025A GB 8229025 A GB8229025 A GB 8229025A GB 2128796 A GB2128796 A GB 2128796A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- recording
- recording apparatus
- mode
- actuating
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/023—Control of operating function, e.g. switching from recording to reproducing remotely controlled
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
-
- 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
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
-
- 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
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
- G11B27/3036—Time code signal
- G11B27/3054—Vertical Interval Time code [VITC]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/782—Television signal recording using magnetic recording on tape
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
There is described a signal recording apparatus having a recording mode in which mode the signal recording apparatus is capable of recording a signal from a signal source wherein the signal recording apparatus is capable of monitoring the said signal source when it is not in the recording mode and is responsive to the presence of an actuating signal present at the signal source which is distinguishable from the usual signal present at the signal source so that the actuating signal causes the signal recording apparatus to enter the recording mode. The signals to be recorded may be video, audio or digital or any combination of these signals. In a particular example the signal recording apparatus is a video recorder provided with a timer and the actuating signal is transmitted between television programmes.
Description
SPECIFICATION
Signal recording
This invention relates to signal recording apparatus.
One attraction of domestic video cassette recorder (VCR) machines is their facility for recording television programmes in the absence ofthewould-be viewer. The majority of VCR machines are provided with a timer which may be preset to actuate the recording mode of the VCR at any given time. In this way a programme scheduled, up to about two weeks ahead, may be recorded without necessitating the presence of the VCR machine user. A considerable problem with this known method of VCR machine recording mode actuation is the necessary flexibility of programme schedules. In many cases, live programmes (for example sports features, concerts, etc.) overrun their alloted programme length. The effect of this is to delay the start of subsequent scheduled programmes.This delay may give cause forfrustration since if the VCR machine has been set up to switch to record mode in time to record a particular programme and the start of the programme is delayed, a section of a preceding programme may be recorded unnecessarily. Indeed if the delay is sizeable and/or if the desired programme is lengthy the end of the desired programme may be missed as a result of the tape in the video cassette running out.
Some VCR machines are provided with timers capable of returning the machines to a stand by mode at a preset time. This facility may be used to return a VCR machine to stand by mode at a time soon after the end of a programme which has been recorded. Clearly if the start of the desired programme is delayed this may result in the loss of the end of the desired programme.
It is the object of the present invention to provide an apparatus and a method to overcome this problem. Indeed whilst the present invention is suited for use upon domestic VCR machines the invention is equally applicable to all signal recording machines be they for recording video, audio or digital signals or be they for use industrially or domestically.
According to the present invention, I provide a signal recording apparatus having a recording mode in which mode the signal recording apparatus is capable of recording a signal from a signal source wherein the signal recording apparatus is capable of monitoring the said signal source when it is not in the recording mode and is responsive to the presence of an actuating signal present at the signal source which is distinguishable from the signal present at the signal source such that the actuating signal causes the signal recording apparatus to enter the recording mode. The signals to be recorded may be video, audio or digital or any combination of these signals. The actuating signal may be any signal compatible with the signals to be recorded provided that the actuating signal is unique in that the probability of its occurrence in the normal signal to be recorded is low.There may be provided a time delay between the receipt of the actuating signal and the commencement of recording. The time delay is preferably variable. This facility would be useful if, for example, the actuating signal precedes the commencement of signals to be recorded. Such a situation may arise if television signals are being recorded from a commercial television broadcast. If such a broadcast includes actuating signals at the end of each programme such a delay would avoid the unnecessary recording of advertisements. A deactuating signal may be provided to switch the signal recorded from the recording mode.
In a preferred aspect of the invention I provide a video recorder having a recording mode in which mode the video recorder is capable of recording a television signal wherein the video recorder is capable of monitoring a television signal when it is not in the recording mode and is responsive to the presence of an actuating signal included in the television signal but which is distinguishable from the television signal such that the actuating signal causes the video recorder to enter the recording mode. The actuating signal may be included in the video or the audio component of the television signal.
In another aspect of the present invention I provide a device connectable to a signal recording apparatus such that the signal recorder and the device cooperate to produce a signal recording apparatus having the features described above.
In yet another aspect of the present invention I provide a method for recording a signal from a signal source wherein there is provided a signal recording apparatus having a recording mode in which mode the signal recording apparatus is capable of recording a signal from a signal source wherein the signal recording apparatus is capable of monitoring the said signal source when it is not in the recording mode and is responsive to the presence of an actuating signal present at the signal source which is distinguishable from the signal present at the signal source such that the actuating signal causes the signal recording apparatus to enter the recording mode.
In a preferred form of this aspect I provide a method for recording a television signal wherein there is provided a video recorder having a recording mode in which mode the video recorder is capable of recording a television signal wherein the video recorder is capable of monitoring a television signal when it is not in the recording mode and is responsive to the presence of a actuating signal included in the television signal but which is distinguishable from the television signal such that the actuating signal causes the video recorder to enter the recording mode.
I now describe a specific embodiment of my invention. The circuitry involved need not be complex and suitable techniques for the generation of actuating signals and their detection will be apparent to a skilled addressee.
A video cassette recorder (VCR) machine is provided with a circuitry to detect an actuating signal transmitted by the relevant broadcasting corporation or authority. At a suitable point in a broadcast (for example, at the end of a programme) the actuating signal is broadcast, either along with conventional picture and/or sound information or in conjunction with a teletext (for example Ceefax or
Oracle) transmission. The actuating signal, when received and detected by the VCR machine of the present invention will cause the VCR machine to begin recording. In this way the user of the VCR could set a timer on the VCR machine to switch it on at a time a little before the scheduled starting time of the programme he desires to record. At the preset time the VCR machine will switch on and will monitor the television signals until such time as the actuating signal is detected. The machine will then commence recording. A second timer preset for the scheduled programme duration is automatically set running at the commencement of recording and will switch the VCR machine off at the end of the period set.
Claims (12)
1. A signal recording apparatus having a recording mode in which mode the signal recording apparatus is capable of recording a signal from a signal source wherein the signal recording apparatus is capable of monitoring the said signal source when it is not in the recording mode and is responsive to the presence of an actuating signal present at the signal source which is distinguishable from the signal present at the signal source such that the actuating signal causes the signal recording apparatus to enter the recording mode.
2. A signal recording apparatus according to claim 1 wherein the signal is selected from a video signal, an audio signal or a digital signal or any combination thereof.
3. A signal recording apparatus according to claim 1 or 2 wherein there is provided means to produce a time delay between the receipt of the actuating signal and the commencement of recording.
4. A signal recording apparatus according to any one of the preceding claims wherein the recording apparatus is capable of monitoring the said signal source when it is in the recording mode and is responsive to a deactuating signal present at the signal source which is distinguishable from the signal present at the signal source such that the deactuating signal causes the signal recording apparatus to leave the recording mode.
5. A signal recording apparatus according to any one of the preceding claims wherein the signal recording apparatus is a video recorder having a recording mode in which mode the video recorder is capable of recording a television signal and wherein the video recorder is capable of monitoring a television signal when it is not in the recording mode and is responsive to the presence of an actuating signal included in the television signal but which is distinguishable from the television signal such that the actuating signal causes the video recorder to enter the recording mode.
6. A signal recording apparatus according to claim 5 wherein the actuating signal is included in the video or audio component of the television signal.
7. A device connectable to a signal recording apparatus wherein the signal recorder and the device cooperate to produce a signal recording apparatus having the features of any one of the preceding claims.
8. A method for recording a signal from a signal source wherein there is provided a signal recording apparatus having a recording mode in which mode the signal recording apparatus is capable of recording a signal from a signal source wherein the signal recording apparatus is capable of monitoring the said signal source when it is not in the recording mode and is responsive to the presence of an actuating signal present at the signal source which is distinguishable from the signal present at the signal source such that the actuating signal causes the signal recording apparatus to enter the recording mode.
9. A method for recording a television signal wherein there is provided a video recorder having a recording mode in which mode the video recorder is capable of recording a television signal wherein the video recorder is capable of monitoring a television signal when it is not in the recording mode and is responsive to the presence of a actuating signal included in the television signal but which is distinguishable from the television signal such that the actuating signal causes the video recorder to enter the recording mode.
10. A signal recording apparatus according to any one of-claims 1 to 6 as hereinbefore described.
11. A device according to claim 6 as hereinbefore described.
12. A method according to claim 8 or 9 as hereinbefore described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08229025A GB2128796A (en) | 1982-10-11 | 1982-10-11 | Signal recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08229025A GB2128796A (en) | 1982-10-11 | 1982-10-11 | Signal recording |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2128796A true GB2128796A (en) | 1984-05-02 |
Family
ID=10533530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08229025A Withdrawn GB2128796A (en) | 1982-10-11 | 1982-10-11 | Signal recording |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2128796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190535A (en) * | 1986-05-16 | 1987-11-18 | Lap Tab Ltd | Radio recorder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1265541A (en) * | 1968-06-17 | 1972-03-01 | ||
| GB1506945A (en) * | 1974-11-15 | 1978-04-12 | Blaupunkt Werke Gmbh | Method of and apparatus for inserting or removing additional information in or from a television signal |
| WO1981000945A1 (en) * | 1979-09-20 | 1981-04-02 | Shelton Video Editors Inc | Automatic circuit and method for editing commercial messages from television signals |
-
1982
- 1982-10-11 GB GB08229025A patent/GB2128796A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1265541A (en) * | 1968-06-17 | 1972-03-01 | ||
| GB1506945A (en) * | 1974-11-15 | 1978-04-12 | Blaupunkt Werke Gmbh | Method of and apparatus for inserting or removing additional information in or from a television signal |
| WO1981000945A1 (en) * | 1979-09-20 | 1981-04-02 | Shelton Video Editors Inc | Automatic circuit and method for editing commercial messages from television signals |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190535A (en) * | 1986-05-16 | 1987-11-18 | Lap Tab Ltd | Radio recorder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |