EP0710016A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Television receiver for broadcast systems with a multiple of display formats
Assignee: Texas Instruments Inc
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Filing: 1995-10-31
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Granted: —
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Expires: 2015-10-31
Abstract
Abstract A television system (100) and display method for receiving and displaying television broadcasts having various formats. The television system (100) resizes the various received image formats for display on a common display device. Images are resized horizontally by altering the rate at which data is sampled by the television (100). Images are resized vertically by using vertical scaling algorithms which alter the number of lines in an image. Format detection may be done automatically by decoding information contained in the vertical interval of the television broadcast signal, or by counting the number of lines in each frame. The input format may be indicated by a viewer.
Inventors
- 👤 Robert J. Gove
- 👤 John R. Reder
- 👤 Scott D. Heimbuch
- 👤 Vishal Markandey
- 👤 Stephen W. Marshall
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 20:47
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/40; H04N21/43; H04N21/4302; H04N21/4307; H04N21/43072; G; G09; G09G; G09G3/00; G09G3/20; G09G3/2092; G09G3/2096; H04N1/00; H04N1/04; H04N1/19; H04N1/191; H04N1/192; H04N1/193; H04N1/1934; H04N21/41; H04N21/426; H04N21/42607; H04N21/4263; H04N21/431; H04N21/4312; H04N21/4316; H04N21/44; H04N21/4402; H04N21/440218; H04N21/440263; H04N21/440272; H04N5/00; H04N5/74; H04N5/7416; H04N5/7458; H04N7/00; H04N7/01; G09G2340/00; G09G2340/04; G09G2340/0407; G09G2340/0414; G09G2340/0421; G09G2340/0442; G09G2360/00; G09G2360/02; G09G3/2007; G09G3/2018; G09G3/2022; H04N21/47; H04N21/485; H04N21/4858
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
120 words
A television receiver system for receiving and displaying television signals broadcast in multiple formats, the receiver system comprising: a tuner circuit for receiving the television broadcast signal and outputting a first video signal having a broadcast format; at least one digital programmable signal processor circuit for receiving and processing the first video signal from the tuner circuit and for producing a second video signal, the digital programmable signal processor for processing video signals having multiple broadcast formats, wherein the processing performed is dependent on the broadcast format of the received television signal; and at least one display device for receiving the second video signal from the programmable signal processor and for producing a visual representation of the second video signal.
Claim 2
Dependent Claim
35 words
The system of Claim 1, further comprising: an analog to digital converter for receiving and digitizing the video signal from the tuner circuit, and for outputting the digitized video signal to the programmable signal processor.
Claim 3
Dependent Claim
53 words
The system of Claim 1 or Claim 2, further comprising: at least one field spreader in the video signal path between the tuner and the programmable signal processor, the field spreader for receiving bursts of the video signal, and for outputting the video signal at a constant rate to the programmable signal processor.
Claim 4
Independent Claim
57 words
The system of any preceding Claim, further comprising: a second tuner circuit for receiving and decimating a second television broadcast signal and for injecting a decimated video signal into the video signal path between the tuner and the programmable signal processor, wherein the video signal and the decimated video signal are simultaneously displayed by the display device.
Claim 5
Independent Claim
23 words
The system of any preceding Claim, wherein the programmable signal processor circuit includes an alternate video input for receiving an alternate video signal.
Claim 6
Independent Claim
26 words
The system of any preceding Claim, further comprising: a timing controller for synchronizing the operations of the tuner, the programmable signal processor, and the display device.
Claim 7
Dependent Claim
29 words
The system of Claim 6, further comprising: a color wheel and motor, wherein the timing controller synchronizes the operation of the display device and the color wheel and motor.
Claim 8
Independent Claim
45 words
The system of any preceding Claim, further comprising: at least one data reformatter in the path of the second video signal for receiving the second video signal from the programmable signal processor and for outputting a reformatted and second video signal to the display device.
Claim 9
Independent Claim
53 words
The system of any preceding Claim, further comprising: a format detection circuit for receiving the video signal and determining the format of the video signal, wherein the format detection circuit communicated the format of the received video signal to the digital signal processor thereby determining the processing performed by the digital signal processor.
Claim 10
Independent Claim
61 words
A method of producing a television image comprising: receiving a television broadcast signal, the television broadcast image having a broadcast format; determining the broadcast format of the television broadcast signal; selectively processing the received television broadcast signal, the processing being dependent on the broadcast format of the received television broadcast signal; and displaying the processed broadcast signal on a display device.
Claim 11
Dependent Claim
41 words
The method of Claim 10, further comprising the steps of: receiving a second television broadcast signal; decimating the second television broadcast signal; and simultaneously displaying both the decimated second television broadcast signal and the processed broadcast signal on a display device.
Claim 12
Dependent Claim
29 words
The method of Claim 10 or Claim 11, wherein said determining step comprises the step of detecting information encoded in the vertical interval of the received television broadcast signal.
References Cited (Backward Citations)
US5061049A
Cited
US9185293B2
Cited
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