GB2341508A - Signal processing apparatus - Google Patents
Signal processing apparatus Download PDFInfo
- Publication number
- GB2341508A GB2341508A GB9822044A GB9822044A GB2341508A GB 2341508 A GB2341508 A GB 2341508A GB 9822044 A GB9822044 A GB 9822044A GB 9822044 A GB9822044 A GB 9822044A GB 2341508 A GB2341508 A GB 2341508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- input
- switch
- output
- signal
- portions
- 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- Withdrawn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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Circuits (AREA)
Abstract
An apparatus for processing signals, the apparatus comprising an input switch for receiving digital signals and providing portions of the signal in sequence at a plurality of outputs, a plurality of processors each connected to a respective output for processing its portion of the signal, and an output switch connected to the outputs of the processors for recombining the portions in sequence. As described, an analogue to digital converter 10 receives analogue video data from either an aerial 10 or video player 24 (via video camera 22) and provides the data in digital format to input switching unit 12. After splitting the input data into portions of one frames duration, switch 12 sequentially supplies the data portions to each one of a plurality of processors 14 in turn. Output switch 16 receives the processed portions in sequence from processors 14 and recombines them before outputting the data to digital to analogue converter 18 and thence to display unit 26.
Description
2341508 APPARATUS FOR PROCESSING SIGNALS This invention is concerned with
apparatus for processing signals.
It has been proposed to process digital Bignalel, but such processes have involved a delay which makes many processes unacceptable'for many applications.
It is an object of the present invention to obviate or mitigate this difficulty.
The present invention is apparatus for processing signals, the apparatus comprising an input switch for receiving a digital signal and providing portions of the signal in sequence at a plurality of outputs, a plurality of processors each connected to a respective output for processing the signal of its portions, and an output switch connected to the outputs of the processors for recombining the processed portions in sequence.
Preferably the input switch has three outputs and the output switch has three inputs.
The..bpparatut.,mby includelan odtput format convbptdirlhaviiig eh input connected to the output of the second switch and an output,the converter changing the recombined signal from a digital format to a format of choice.
The apparatus may also include an input format converter for converting the format of an input signal to a digital format, the output of the input converter being connected to the input of the input switch.
An embodiment of the present invention and a process and application will now be described by way of example with reference to the accompanying drawing, the single figure of which is a block circuit diagram of apparatus according to the present invention.
2 Referring now to the drawing, apparatus for processing a television signal from a two dimensional to a three dimensional format includes an analogue to digital input converter 10 to the output of'which is connected an input switch 12, in this embodiment a micro timer relay switch, having a plurality of outputs, In this embodiment three outputs. A plurality of processors 14 are each connected to a respective output of the input switch 12, and the outputs of the processors are connected to respective inputs of an output switch 16, whose output Is passed to a digital to analogue output converter 18.
The input signal to the converter 10 is an analogue television signal which may be provided, for example, from an serial 20 or from a video camera 22 through a video player 24. The output signal from the converter 18 is an analogue signal suitable for input to a television set 26.
To understand the operation of the apparatus it should be understood that a digital signal representing, for example,. a particular programme can be processed from a two dimensional to a three dimensional format almost instananeously but only after the complete progra has been received and stored.Thus, a programme broadcast In a two dimensional format can be viewed in a three dimensional format only after the programme has finished, this delay being unacceptable to the viewing public.
The present invention deals with this problem by splitting the two dimensional signal into short portions which are passed in sequence to processors which process th format of a received portion to a three dimensional format, the processed portions then being rtleombined in sequence. The delay involved is then negligible.
Referring again to the drawing,the input converter 10 converts the analogue signal received f ' rom the aerial 20 or video player 24 to a digtal signal. The converter 10 will normally receive several channel signals from an aerial and is therefore provided with an adjustable tuner to allow selection of the channel of interest.
3, The digital signal from the converter 1 0 passes to the input switch 12 which splits the nignal into successive portions each of one frames duration. When a processor 14 has received its signal portion it processes it into the three dimensional format and then outputs 'the processed digital portion to the output switch 16. The processor 14 is then free to receive its next portion when the third processor has finished receiving the third portion.
The switch 16 receives the processed portions in sequence from the processors 14 and pass" them to the digital to analogue output converter 18 so that the signal can be used by the television set 26_ to show the programme as an apparently three dimensional picture.
The converters 10 and 18 are well known per se and are avtlli3ble?t as external T.V. Smart kits. Similarlyl the processors 14 are microprocessors programmed with any one of the commercially available automated programmes for changing a digital signal format from two dimensional to three dimensional.
The embodiment described may be modified by,for example,using wore processors or even just two,or by changing the type the ldcation or even the number of switches or format converters.
Claims (5)
1. Apparatus for processing signals, the apparatus comprising an input switch for receiving a digital signal and providing portions of the signal in sequence at a plurality of outputs, a plurality of processors each connected to a respective output for processing its portions of the signal, and an output switch connected to the outputs of the processors for recombining the processed portions in sequence.
2. Apparatus as claimed in claim 1, in which the input switch has three outputs and the output switch has three inputs.
3. Apparatus as claimed in claim 1 or claim 2, including an output format converter having an input connected to the output of the second switch and an output, the converter changing the recombined signal from a digital format to a format of choice.
4. Apparatus as claimed in any preceding claim, ftuther including an input format converter for changing the format of an input signal to a digital format, the output of the input converter being connected to the input of the input switch.
5. Apparatus for processing signals, substantially as hereinbefore described with reference to and as shown in the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9819437.6A GB9819437D0 (en) | 1998-09-08 | 1998-09-08 | Apparatus for conveting television signals from 2-D to 3-D |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9822044D0 GB9822044D0 (en) | 1998-12-02 |
| GB2341508A true GB2341508A (en) | 2000-03-15 |
Family
ID=10838438
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9819437.6A Ceased GB9819437D0 (en) | 1998-09-08 | 1998-09-08 | Apparatus for conveting television signals from 2-D to 3-D |
| GB9822044A Withdrawn GB2341508A (en) | 1998-09-08 | 1998-10-12 | Signal processing apparatus |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9819437.6A Ceased GB9819437D0 (en) | 1998-09-08 | 1998-09-08 | Apparatus for conveting television signals from 2-D to 3-D |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB9819437D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005096617A1 (en) * | 2004-04-01 | 2005-10-13 | Innovonics Limited | Method and apparatus for producing images |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1583928A (en) * | 1977-06-04 | 1981-02-04 | Bosch Gmbh Robert | Method of processing colour television signals |
| GB2235112A (en) * | 1989-06-09 | 1991-02-20 | American Telephone & Telegraph | Communications system incorporating error correction coding and decision feedback equalisers |
| EP0812113A2 (en) * | 1996-06-05 | 1997-12-10 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for partitioning and decoding compressed digital video bitstreams by parallel decoders |
-
1998
- 1998-09-08 GB GBGB9819437.6A patent/GB9819437D0/en not_active Ceased
- 1998-10-12 GB GB9822044A patent/GB2341508A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1583928A (en) * | 1977-06-04 | 1981-02-04 | Bosch Gmbh Robert | Method of processing colour television signals |
| GB2235112A (en) * | 1989-06-09 | 1991-02-20 | American Telephone & Telegraph | Communications system incorporating error correction coding and decision feedback equalisers |
| EP0812113A2 (en) * | 1996-06-05 | 1997-12-10 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for partitioning and decoding compressed digital video bitstreams by parallel decoders |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005096617A1 (en) * | 2004-04-01 | 2005-10-13 | Innovonics Limited | Method and apparatus for producing images |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9819437D0 (en) | 1998-10-28 |
| GB9822044D0 (en) | 1998-12-02 |
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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) |