EP0701367A2
Expired / Lapsed
EP
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Program guide interface
Assignee: Technicolor USA Inc
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Filing: 1995-08-26
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Granted: —
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Expires: 2015-08-26
Abstract
Abstract A source (12) provides analog and digital video signals, each representative of a picture and each of which may carry program guide information. A demultiplexer (14) has the digital video signal as an input and the program guide information as an output. A demodulator (28) has at least a luminance component of the analog video signal as an input and the program guide information as an output. A microprocessor (18), a video graphics adapter (20), the demultiplexer (14) and the demodulator (28) are interconnected by a data bus (32). Either of the program guide outputs is transferable to the video graphics adapter (20), which formats a graphics video signal representative of the program guide information. The graphics video signal and a selected one of the video signals are inputs to a multiplexer (24), the output of which is a video signal (OUTPUT VIDEO (Y,C) ) representative of both the program guide information and the picture represented by the selected video signal.
Inventors
- 👤 Thomas Patrick Newberry
- 👤 Enrique Rodriguez-Cavazos
- 👤 Timothy William Saeger
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 23:05
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/08; H04N7/087; H04N7/088; H04N7/0884; H04N21/00; H04N21/40; H04N21/41; H04N21/426; H04N21/42607; H04N21/4263; H04N21/42638; H04N21/42653; H04N21/43; H04N21/434; H04N21/4345; H04N21/435; H04N21/47; H04N21/482; H04N7/0887; H04N5/00; H04N5/44; H04N5/445; H04N5/44504
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
131 words
A program guide interface, characterized by: a source (12) of analog and digital video signals, each of which is representative of a picture and each of which may carry program guide information; means (28 or 14) for separating said program guide information from at least one of said analog and digital video signals; a video graphics generator (20); a microprocessor (18) for routing said separated program guide information to said video graphics generator (20), said video graphics generator formatting a graphics video signal representative of said program guide information; and, means (24, 22) for combining said graphics video signal with any one of said analog and digital video signals to generate a combined video display signal (OUTPUT VIDEO (Y,C) ) including said program guide information and any one of said pictures.
Claim 2
Dependent Claim
22 words
The interface of claim 1, further characterized by a signal path (30) for an auxiliary information signal for said program guide information.
Claim 3
Dependent Claim
28 words
The interface of claim 2, characterized in that said microprocessor can also route said program guide information from said signal path (30) to said video graphics generator (20).
Claim 4
Dependent Claim
29 words
The interface of claim 1, further comprising means (22) for selecting one of said analog and digital video signals for said combined video display signal (OUTPUT VIDEO (Y,C) ).
Claim 5
Dependent Claim
24 words
The interface of claim 1, further characterized by a synchronizing signal separator (34) for supplying scan synchronizing information to said video graphics generator (20).
Claim 6
Dependent Claim
27 words
The interface of claim 1, further characterized by respective means (28, 14) for separating said program guide information from each of said analog and digital video signals.
Claim 7
Dependent Claim
24 words
The interface of claim 6, characterized in that said means for separating said program guide information comprises a data packet transport stream demultiplexer (14).
Claim 8
Dependent Claim
27 words
The interface of claim 1, characterized in that said means for separating said program guide information comprises a demodulator (28) for data transmitted in vertical blanking intervals.
Claim 9
Dependent Claim
50 words
The interface of claim 1, characterized in that said combining means comprises: a first multiplexer (22) for selecting between said digital and analog signals for display; and, a second multiplexer (24) for selecting between said previously selected one of said digital and analog video signals and said graphics video signal.
Claim 10
Dependent Claim
25 words
The interface of claim 1, further characterized by an RGB to Y, C encoder (38) coupled to said video graphics generator and said combining means.
Claim 11
Dependent Claim
18 words
The interface of claim 10, further characterized by means for supplying a burst signal (C) to said encoder.
Claim 12
Dependent Claim
213 words
A program guide interface, characterized by: a source (12) of analog and digital video signals, each of which is representative of a picture and each of which may carry program guide information; a demultiplexer (14) having said digital video signal as an input and having said program guide information as a first program guide output; a demodulator (28) having at least a luminance component (Y) of said analog video signal as an input and having said program guide information as a second program guide output; a first multiplexer (22) having said digital and analog video signals as inputs and having a selected video signal as an output; and, a video graphics adapter (20); a microprocessor (18); a data bus (32) interconnecting said demultiplexer (14), said demodulator (28), said video graphics adapter (20) and said microprocessor (18), any one of said first and second program guide outputs being transferable to said video graphics adapter (20), said video graphics adapter formatting a graphics video signal representative of said program guide information; and, a second multiplexer (24) having said graphics video signal and said selected video signal as inputs and having a combined output video signal (OUTPUT VIDEO (Y,C) ) representative of both said program guide information and said picture represented by said selected video signal.
Claim 13
Dependent Claim
21 words
The interface of claim 12, characterized by a signal path (30) for an auxiliary information signal for said program guide information.
Claim 14
Dependent Claim
28 words
The interface of claim 13, characterized in that said microprocessor (18) can also route said program guide information from said signal path (30) to said video graphics generator.
Claim 15
Dependent Claim
44 words
The interface of claim 12, characterized in that: said demultiplexer (14) separates data packets from a digital data packet transport stream defining said digital video signal; and, said demodulator (28) separates said program guide information from vertical blanking intervals of said analog video signal.
Claim 16
Dependent Claim
181 words
A program guide interface, characterized by: a source (12) of an analog video signal representative of a first picture and including program guide information transmitted therewith, a digital video signal representative of a second picture and including said program guide information encoded therewith and an information signal including only said program guide information; means (22) for selecting one of said analog and digital video signals as a source for a video display; means (28 or 14) for separating said program guide information from at least one of said analog video signal, said digital video signal and said digital information signal; a video graphics generator (20); a microprocessor (18) for routing said separated program guide information to said video graphics generator (20), said video graphics generator (20) formatting a graphics video signal representative of said program guide information; and, means (24) for combining said graphics video signal with said selected one of said analog and digital video signals to generate a combined output video signal (OUTPUT VIDEO (Y,C) ) including one of said first and second pictures and said program guide information.
Claim 17
Dependent Claim
39 words
The interface of claim 16, further characterized by means (14, 28; 14, 18; 18, 28) for separating said program guide information from at least two of said analog video signal, said digital video signal and said digital information signal.
Claim 18
Dependent Claim
34 words
The interface of claim 16, further characterized by means (14, 18, 28) for separating said program guide information from each of said analog video signal, said digital video signal and said digital information signal.
Claim 19
Dependent Claim
16 words
The interface of claim 16, characterized in that said separating means comprises a digital demultiplexer (14).
Claim 20
Dependent Claim
16 words
The interface of claim 16, characterized in that said separating means comprises an analog demodulator (28).
References Cited (Backward Citations)
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