EP0587130A2
Expired / Lapsed
EP
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Television signal processor
Assignee: Toshiba Corp
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Filing: 1993-09-07
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Granted: —
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Expires: 2013-09-07
Abstract
Abstract The present invention provides a television signal processor which can selectively signal-process each television signal transmitted by a plurality of types of television system, and which can image-display the signal-processed television signal by a large number of types of display (42) having a different synchronizing frequency and an aspect ratio. The television signal processor of the present invention comprises signal processing means (27 to 39, 45 to 47) for providing a decode-processing, corresponding to the system of the television signal, to the inputted television signal, and control means (30, 40, 47) for providing a signal processing, corresponding to a specification of the display (42) for image-displaying the television signal, to the television signal decode-processed by the signal processing means (27 to 39, 45 to 47).
Inventors
- 👤 Akira C/O Intellectual Property Div. Matsushita
- 👤 Hiroyuki C/O Intellectual Property Div. Iga
- 👤 Masahiro c/o Intellectual Property Div. Yamada
- 👤 Kiyoshi c/o Intellectual Property Div. Hoshino
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 18:02
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/01; H04N7/0117; H04N7/0122; H04N5/00; H04N5/44; H04N5/46; H04N7/0125; H04N7/015; H04N7/0152; H04N9/00; H04N9/64; H04N9/642
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
74 words
A television signal processor characterized by comprising: signal processing means (27 to 39, 45 to 47) for providing a decode processing, corresponding to a system of an inputted television signal, to said television signal; and controlling means (30, 40, 47) for providing a signal processing, corresponding to a specification of a display (42) for image-displaying said television signal, to said television signal decode-processed by said signal processing means (27 to 39, 45 to 47).
Claim 2
Dependent Claim
54 words
The television signal processor according to claim 1, characterized in that said signal processing means (27 to 39, 45 to 47) comprises a system discriminating means (45) for discriminating the system of the inputted television signal, and the inputted television signal is decode-processed based on the discrimination result of said system discriminating means (45).
Claim 3
Dependent Claim
90 words
The television signal processor according to claim 1, characterized in that said controlling means (30, 40, 47) comprises input means (47) for inputting the specification of said display (42), and image-processing means (30, 41, 44) for image-processing a signal processing to said television signal decode-processed by said signal processing means (27 to 39, 45 to 47) so as to correspond to the specification of said display (42) based on the specification of said display (42) inputted by said input means and the discrimination result of said system discriminating means (45).
Claim 4
Dependent Claim
156 words
The television signal processor according to claim 1, characterized in that said image processing means (30, 41, 44) comprises calculation means (30) for calculating a culling rate of a horizontal or vertical direction of said television signal or an interpolation rate so as to image-display said television signal decode-processed by said signal processing means (27 to 39, 45 to 47) by said display means (42) based on the specification of said display (42) inputted by said input means (47) and the discrimination result of said system discriminating means (45), culling means (56, 62 to 78) for providing a culling processing of the horizontal or vertical direction to said decode-processed television signal based on the culling rate calculated by said calculation means (30), and interpolation means (56, 62 to 78) for providing an interpolation processing of the horizontal or vertical direction to said decode-processed television signal based on the interpolation rate calculated by said calculation means (30).
Claim 5
Dependent Claim
57 words
The television signal processor according to claim 4, characterized in that said image processing means (30, 41, 44) comprises time conversion means (56 to 61) for time-axis-converting said decoded-processed television signal so as to correspond to a synchronizing frequency of said display (42) based on the specification of said display (42) inputted by said input means (47).
Claim 6
Dependent Claim
44 words
The television signal processor according to claim 5, characterized in that said image-processing means (30, 41, 44) provides said culling means (56, 62 to 78) and interpolation means (56, 62 to 78) at a trailing stage of said time conversion means (56 to 61).
Claim 7
Dependent Claim
63 words
The television signal processor according to claim 5, characterized in that said image-processing means (30, 41, 44) provides said culling means (103, 106 to 110) at a first stage of said time conversion means (103, 104, 105, 111 to 120), and said interpolation means (103, 123 to 139) at the trailing stage of said time conversion means (103, 104, 105, 111 to 120).
Claim 8
Dependent Claim
56 words
The television signal processor according to claim 5, characterized in that said controlling means (30, 40, 47) comprises synchronizing processing means (30, 43, 44) for generating a synchronizing signal for driving said display (42) and outputting said signal to said display (42) based on the specification of said display (42) inputted by said input means (47).
Claim 9
Dependent Claim
67 words
The television signal processor according to claim 8, characterized in that said time conversion means (56 to 61) comprises storing means (57) for sequentially writing said decode-processed television signal by timing based on its synchronizing frequency, and for sequentially reading said decode-processed television signal by timing based on a frequency of the synchronizing signal for said display (42) generated by said synchronizing processing means (30, 43, 44).
Claim 10
Dependent Claim
132 words
The television signal processor according to claim 1, characterized in that said signal processing means (27 to 39, 45 to 47) comprises tuning means (28, 34) for selecting one television signal from television signals transmitted by a plurality of types of television systems, a plurality of decode means (35, 36) provided to correspond to each television signal transmitted by the plurality of types of television systems, first switching means (29) for introducing the television signal selected by said tuning means (28, 34) to said decode means (35, 36) corresponding to the system of said television, and second switching means (38, 39) for introducing an output signal of said decode means (35, 36), obtained by decode-processing the television signal selected by said tuning means (28, 34), to said control means (30, 40, 47).
Claim 11
Dependent Claim
28 words
The television signal processor according to claim 10, characterized in that the specification of said display (42) includes the synchronizing frequency of said display and an aspect ratio.
Claim 12
Dependent Claim
26 words
The television signal processor according to claim 10, characterized in that said plurality of types of television systems includes a NTSC system and a MUSE system.
References Cited (Backward Citations)
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