Patent US5218436A successfully refreshed from Google Patents.
US5218436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing circuit for a plurality of different TV signals
Assignee: Hitachi Ltd
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Filing: 1991-01-23
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Granted: 1993-06-08
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Expires: 2011-01-23
Abstract
Abstract A television for receiving two or more types of television signals capable of displaying an image irrespective of the types of a received television signal and a display for displaying an image, by controlling, in accordance with the receiving television signal and the display, a processor and aspect ratio converter for demodulating the received television signal.
Inventors
- 👤 Masato Sugiyama
- 👤 Shigeru Hirahata
- 👤 Tohru Suzaki
- 👤 Isao Nakagawa
- 👤 Kenji Katsumata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:44
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/01; H04N7/0117; H04N7/0122; H04N5/00; H04N5/14; H04N5/44; H04N5/46
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
225 words
A television for receiving two or more types of television signals, the television having a television signal processing circuit, said television signal processing circuit comprising: input selecting means for designating a television signal to be inputted; a television signal input terminal for receiving the designated television signal; a display terminal adapted to be connected to a display on which the television signal is displayed as an image; a display type input terminal for receiving a signal representative of a connected display; at least two types of processors for demodulating a signal inputted rom said television signal input terminal into a television signal for the display; aspect ratio conversion means for receiving a video output signal from said processor, converting said received video signal into a signal corresponding to an aspect ratio of the display connected to said display terminal, and outputting said converted signal to said connected display; signal discriminating means for receiving said designated television signal and discriminating type of said designated television signal; and mode control means for receiving a discrimination signal from said signal discriminating means, a display type discrimination signal from said display type input terminal, and the designation signal from said input selecting means, designating an operation mode in accordance with the inputted signals, and causing said processors and said aspect ratio conversion means to operate in a predetermined manner.
Claim 2
Dependent Claim
225 words
A television for receiving two or more types of television signals, the television having a television signal processing circuit, said television signal processing circuit comprising: input selecting means for designating a television signal to be inputted; a television signal input terminal for receiving the designated television signal; a display terminal adapted to be connected to a display on which the television signal is displayed as an image; a display type input terminal for receiving a signal representative of a connected display; at least two types of processors for demodulating a signal inputted rom said television signal input terminal into a television signal for the display; aspect ratio conversion means for receiving a video output signal from said processor, converting said received video signal into a signal corresponding to an aspect ratio of the display connected to said display terminal, and outputting said converted signal to said connected display; signal discriminating means for receiving said designated television signal and discriminating type of said designated television signal; and mode control means for receiving a discrimination signal from said signal discriminating means, a display type discrimination signal from said display type input terminal, and the designation signal from said input selecting means, designating an operation mode in accordance with the inputted signals, and causing said processors and said aspect ratio conversion means to operate in a predetermined manner.
Claim 3
Dependent Claim
53 words
A television according to claim 1, wherein at least one of said processors comprises decode means for demodulating an inputted high definition television signal into a high definition television signal for the display, and down-convert means for down converting said inputted high definition television signal into a standard television signal for the display.
Claim 4
Dependent Claim
51 words
A television according to claim 2, wherein an output signal from said down-convert means of said processor is supplied to a processor different from said processor to be subjected to an IDTV process to improve an S/N ratio, and thereafter outputted to said display terminal via said aspect ratio conversion means.
Claim 5
Dependent Claim
49 words
A television according to claim 3, further comprising encode means for receiving a standard television signal for the display outputted from said processors and converting said standard television signal into a television signal including a separated luminance signal and color signals for the image recording by a video apparatus.
Claim 6
Dependent Claim
81 words
A television according to claim 4, further comprising the wide screen discrimination signal adding means for adding a wide screen discrimination signal to a signal outputted from said encode means if said output signal is for the side aspect ratio, and wide screen discrimination detection means for detecting, if a television signal inputted from said television signal input terminal is added with said wide screen discrimination signal, said wide screen discrimination signal, and informing said mode control means of the detection.
Claim 7
Dependent Claim
49 words
A television according to claim 2, further comprising encode means for receiving a standard television signal for the display outputted from said processors and converting said standard television signal into a television signal including a separated luminance signal and color signals for the image recording by a video apparatus.
Claim 8
Dependent Claim
80 words
A television according to claim 6, further comprising wide screen discrimination signal adding means for adding a wide screen discrimination signal to a signal outputted from said encode means if said output signal is for a wide aspect ratio, and wide screen discrimination detection means for detecting, if a television signal inputted from said television signal input terminal is added with said wide screen discrimination signal, said wide screen discrimination signal, and informing said mode control means of the detection.
Claim 9
Dependent Claim
33 words
A television according to claim 1, wherein at least one of said processors comprises down-convert means for down converting an inputted high definition television signal into a standard television signal for the display.
Claim 10
Dependent Claim
51 words
A television according to claim 8, wherein an output signal from said down-convert means of said processor is supplied to a processor different from said processor to be subjected to an IDTV process to improve an S/N ratio, and thereafter outputted to said display terminal via said aspect ratio conversion means.
Claim 11
Dependent Claim
49 words
A television according to claim 9, further comprising encode means for receiving a standard television signal for the display outputted from said processors and converting said standard television signal into a television signal including a separated luminance signal and color signals for the image recording by a video apparatus.
Claim 12
Dependent Claim
80 words
A television according to claim 10, further comprising wide screen discrimination signal adding means for adding a wide screen discrimination signal to a signal outputted from said encode means if said output signal is for a wide aspect ratio, and wide screen discrimination detection means for detecting, if a television signal inputted from said television signal input terminal is added with said wide screen discrimination signal, said wide screen discrimination signal, and informing said mode control means of the detection.
Claim 13
Dependent Claim
49 words
A television according to claim 8, further comprising encode means for receiving a standard television signal for the display outputted from said processors and converting said standard television signal into a television signal including a separated luminance signal and color signals for the image recording by a video apparatus.
Claim 14
Dependent Claim
81 words
A television according to claim 12, further comprising a wide screen discrimination signal adding means for adding a wide screen discrimination signal to a signal outputted from said encode means if said output signal is for a wide aspect ratio, and wide screen discrimination detection means for detecting, if a television signal inputted from said television signal input terminal is added with said wide screen discrimination signal, said wide screen discrimination signal, and informing said mode control means of the detection.
Claim 15
Dependent Claim
49 words
A television according to claim 1, further comprising encode means for receiving a standard television signal for the display outputted from said processors and converting said standard television signal into a television signal including a separated luminance signal and color signals for the image recording by a video apparatus.
Claim 16
Dependent Claim
80 words
A television according to claim 14, further comprising wide screen discrimination signal adding means for adding a wide screen discrimination signal to a signal outputted from said encode means if said output signal is for a wide aspect ratio, and wide screen discrimination detection means for detecting, if a television signal inputted from said television signal input terminal is added with said wide screen discrimination signal, said wide screen discrimination signal, and informing said mode control means of the detection.
Claim 17
Dependent Claim
34 words
A television according to claim 1, wherein at least one of said processors is an ED processor for performing an EDTV process of an EDTV signal which is one of the received television signals.
Claim 18
Dependent Claim
65 words
A television according to claim 1, wherein said at least two or more types of said processors comprise an ED processor and an ID processor, and motion adaptive high image quality means of said ED processor for performing a motion adaptive high image quality process using inter-frame or inter-field correlation is used in common with motion adaptive high image quality means of said ID processor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |