GB2341508A - Signal processing apparatus - Google Patents

Signal processing apparatus Download PDF

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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
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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Withdrawn
Application number
GB9822044A
Other versions
GB9822044D0 (en
Inventor
Peter John Taylor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB9822044D0 publication Critical patent/GB9822044D0/en
Publication of GB2341508A publication Critical patent/GB2341508A/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/12Systems 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

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  • 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.
GB9822044A 1998-09-08 1998-10-12 Signal processing apparatus Withdrawn GB2341508A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
GB9822044D0 (en) 1998-12-02
GB9819437D0 (en) 1998-10-28

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)