Patent US6104437A successfully refreshed from Google Patents.
US6104437A
Expired / Lapsed
US
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Display signal processing device having a controllable LED display
Assignee: Panasonic Holdings Corp
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Filing: 1998-05-14
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Granted: 2000-08-15
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Expires: 2018-05-14
Abstract
Abstract The device comprises a signal processing section and an LED display section. The signal processing section comprises a signal processor for identifying and processing a plurality of types of display signals. The signal processing section comprises a first signal processing section for processing a television signal, and a second signal processing section for processing a non-television signal. Functions performed by the LED display section include identifying and displaying a plurality of types of display signals and controlling the color range to be displayed.
Inventors
- 👤 Hiroyuki Taira
- 👤 Kazuya Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:51
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/44; H04N5/46; H04N9/00; H04N9/64; H04N9/641
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
103 words
A display signal processing device for processing a plurality of types of display signals, the device comprising: a first signal processing section for processing a television signal comprising: a sampling circuit for converting the television signal to a first digital signal, an RGB conversion circuit for converting the first digital signal to an RGB signal, and a first scaling circuit for scaling the first digital signal; and a second signal processing section for processing a non-television signal comprising: an A/D conversion circuit for converting the non-television signal to a second digital signal, and a second scaling circuit for scaling the second digital signal.
Claim 2
Dependent Claim
103 words
A display signal processing device for processing a plurality of types of display signals, the device comprising: a first signal processing section for processing a television signal comprising: a sampling circuit for converting the television signal to a first digital signal, an RGB conversion circuit for converting the first digital signal to an RGB signal, and a first scaling circuit for scaling the first digital signal; and a second signal processing section for processing a non-television signal comprising: an A/D conversion circuit for converting the non-television signal to a second digital signal, and a second scaling circuit for scaling the second digital signal.
Claim 3
Dependent Claim
37 words
A display signal processing device according to claim 1, wherein: the television signal is one of an NTSC signal, an HDTV signal, a PAL signal and a SECAM signal, while the non-television signal is a graphic signal.
Claim 4
Dependent Claim
27 words
A display signal processing device according to claim 1, wherein: the first signal processing section includes an identification circuit for identifying a type of the television signal.
Claim 5
Dependent Claim
30 words
A display signal processing device according to claim 3, wherein: the identification circuit identifies the type of the television signal by detecting a unique component contained in the television signal.
Claim 6
Dependent Claim
99 words
An LED display system, comprising: an LED display section including a plurality of light emitting blocks arranged in matrix, the light emitting blocks each including three or more LEDs of different colors; a display signal transmission section for transmitting a plurality of types of display signals to the LED display section; a display signal identification section for identifying said plurality of types of display signals; and a color range control section for controlling a color range to be displayed on the LED display section depending on the type of the display signal identified by the display signal identification section.
Claim 7
Dependent Claim
99 words
An LED display system, comprising: an LED display section including a plurality of light emitting blocks arranged in matrix, the light emitting blocks each including three or more LEDs of different colors; a display signal transmission section for transmitting a plurality of types of display signals to the LED display section; a display signal identification section for identifying said plurality of types of display signals; and a color range control section for controlling a color range to be displayed on the LED display section depending on the type of the display signal identified by the display signal identification section.
Claim 8
Dependent Claim
31 words
An LED display system according to claim 5, wherein the display signal identification section identifies the type of the display signal by detecting a unique component contained in the display signal.
Claim 9
Dependent Claim
39 words
An LED display system according to claim 5, wherein the display signal identification section identifies the type of the display signal depending on a selection signal which indicates a selected one of the plurality of types of display signals.
Claim 10
Dependent Claim
62 words
An LED display system according to claim 5, the color range control section comprising: a control system selection circuit for selecting a control system of the LED display section depending on the type of the display signal; and a conversion section for converting a chromaticity coordinate of the display signal depending on the control system selected by the control system selection circuit.
Claim 11
Dependent Claim
58 words
An LED display system according to claim 8, the conversion section comprising: a plurality of conversion tables provided to respectively correspond to the plurality of types of display signals; a conversion table selection circuit for selecting one of the plurality of conversion tables; and a gamma conversion table provided commonly among the plurality of types of display signals.
Claim 12
Dependent Claim
37 words
An LED display system according to claim 9, the conversion section further comprising: a multiplier for multiplying an output of the selected one of the plurality of conversion tables by an output of the gamma conversion table.
Claim 13
Dependent Claim
28 words
An LED display system according to claim 8, the conversion section comprising: at least two processing sections each for processing chromaticity coordinate values for three or more points.
Claim 14
Dependent Claim
30 words
An LED display system according to claim 11, the at least two processing sections comprising a processing section for a television signal and a processing section for a non-television signal.
Claim 15
Dependent Claim
23 words
An LED display system according to claim 11, the at least two processing sections comprising processing sections for two types of television signals.
Claim 16
Dependent Claim
32 words
An LED display system according to claim 5, wherein the display signal identification section outputs an identification signal indicating the type of the display signal, the identification signal being a digital signal.
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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) | 2003-08-15 | 2004-02-14 | 2004-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-08-15 | 2008-02-14 | 2008-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-08-15 | 2012-02-14 | 2012-08-15 | $7700.00 | Window Closed / Lapsed |