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Patent US5477397A successfully refreshed from Google Patents.
US5477397A
Expired / Lapsed
US
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Digital high definition television receiver with features that facilitate trick-play modes on a digital VCR
Assignee: Panasonic Corp of North America
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Filing: 1993-06-08
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Granted: 1995-12-19
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Expires: 2013-06-08
Abstract
Abstract A high-definition television receiver includes circuitry to decode a received high-definition television signal to produce a digital data stream representing the corresponding high-definition television image. In addition, the receiver includes circuitry which generates a signal representing a reduced resolution image from the decoded data stream. The receiver provides both the high-definition television signal and the reduced resolution signal at an output port. A video tape recorder (VTR) receives the two signals, segments them and formats them onto the tape in a manner which allows a majority of the reduced resolution segments to be recovered and displayed in at least one of the VTR's trick-play modes. The reduced resolution image may be from the same channel or from a different channel and may also be displayed as an inset picture (PIX-IN-PIX) in the main high-definition image.
Inventors
- 👤 Saiprasad V. Naimpally
- 👤 Hee-Yong Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:29
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; G; G06; G06T; G06T3/00; G06T3/40; G06T3/4084; H04N19/00; H04N19/40; H04N21/00; H04N21/20; H04N21/23; H04N21/236; H04N21/40; H04N21/41; H04N21/414; H04N21/4147; H04N21/43; H04N21/434; H04N5/91; H04N5/92; H04N5/926; H04N5/9261; H04N5/9264; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; H04N5/78; H04N5/782; H04N5/7824; H04N5/7826; H04N5/78263; H04N5/78266; H04N5/783; H04N9/82; H04N9/8205; H04N9/8227
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
138 words
A high-definition television receiver capable of decoding a high-definition video signal that was encoded using both intra-frame and predictive encoding techniques comprising: means for receiving the encoded high-definition video signal; decoding means for decoding the encoded high-definition video signal to produce a decoded digital signal representing a high-definition video image; decimating means, responsive to the decoded digital signal, for decreasing the number of samples in the decoded digital signal to produce a decimated video signal representing a video image having a reduced number of picture elements; means for encoding the decimated video signal, using intra-frame encoding techniques to the relative exclusion of predictive encoding techniques, to produce an encoded low-resolution video signal which is independent of the encoded high-definition video signal; and output means for providing both the encoded high-definition video signal and the encoded low-resolution video signal.
Claim 2
Dependent Claim
138 words
A high-definition television receiver capable of decoding a high-definition video signal that was encoded using both intra-frame and predictive encoding techniques comprising: means for receiving the encoded high-definition video signal; decoding means for decoding the encoded high-definition video signal to produce a decoded digital signal representing a high-definition video image; decimating means, responsive to the decoded digital signal, for decreasing the number of samples in the decoded digital signal to produce a decimated video signal representing a video image having a reduced number of picture elements; means for encoding the decimated video signal, using intra-frame encoding techniques to the relative exclusion of predictive encoding techniques, to produce an encoded low-resolution video signal which is independent of the encoded high-definition video signal; and output means for providing both the encoded high-definition video signal and the encoded low-resolution video signal.
Claim 3
Dependent Claim
46 words
A television receiver according to claim 1, wherein: the encoded high-definition video signal is encoded using both intra-frame and predictive encoding techniques; the decimating means reduces the number of samples in the decimated video signal by a factor of one-fourth relative to the decoded digital signal.
Claim 4
Dependent Claim
240 words
A high-definition video signal processing apparatus capable of decoding a high-definition video signal that was encoded using both intra-frame and predictive encoding techniques comprising: means for receiving the encoded high-definition video signal; decoding means for decoding the encoded high-definition video signal to produce a decoded digital signal representing a high-definition video image; decimating means, responsive to the decoded digital signal, for decreasing the number of samples in the decoded digital signal to produce a decimated video signal representing a video image having a reduced number of picture elements; means for encoding the decimated video signal, using intra-frame encoding techniques to the relative exclusion of predictive encoding techniques, to produce an encoded low-resolution video signal; output means for providing both the encoded high-definition video signal and the encoded low-resolution video signal; a video tape recorder (VTR), having at least one trick-play mode, coupled to receive the encoded high-definition video signal and the encoded low-resolution video signal provided by the output means, the VTR including: means for separating each of the encoded high-definition video signal and the encoded low-resolution video signal into respective segments; means for interleaving ones of the segments of the high-definition video signal with respective ones of the segments of the encoded low-resolution video signal to produce a combined signal; means for recording the combined signal on the video tape such that a substantial portion of the encoded low-resolution signal is recovered by the VTR in the trick-play mode.
Claim 5
Dependent Claim
240 words
A high-definition video signal processing apparatus capable of decoding a high-definition video signal that was encoded using both intra-frame and predictive encoding techniques comprising: means for receiving the encoded high-definition video signal; decoding means for decoding the encoded high-definition video signal to produce a decoded digital signal representing a high-definition video image; decimating means, responsive to the decoded digital signal, for decreasing the number of samples in the decoded digital signal to produce a decimated video signal representing a video image having a reduced number of picture elements; means for encoding the decimated video signal, using intra-frame encoding techniques to the relative exclusion of predictive encoding techniques, to produce an encoded low-resolution video signal; output means for providing both the encoded high-definition video signal and the encoded low-resolution video signal; a video tape recorder (VTR), having at least one trick-play mode, coupled to receive the encoded high-definition video signal and the encoded low-resolution video signal provided by the output means, the VTR including: means for separating each of the encoded high-definition video signal and the encoded low-resolution video signal into respective segments; means for interleaving ones of the segments of the high-definition video signal with respective ones of the segments of the encoded low-resolution video signal to produce a combined signal; means for recording the combined signal on the video tape such that a substantial portion of the encoded low-resolution signal is recovered by the VTR in the trick-play mode.
Claim 6
Dependent Claim
39 words
A high-definition video signal processing apparatus according to claim 3, further including: means, coupled to the decoding means and including a display device, for processing the decoded digital signal to reproduce the high-definition video image on the display device.
Claim 7
Dependent Claim
91 words
A high-definition video signal processing apparatus according to claim 3, further including: means for receiving a further encoded high-definition video signal; further decoding means for decoding the further encoded high-definition video signal to produce a further decoded digital signal representing a further high-definition video image; and means, coupled to receive the further decoded digital signal and the decimated video signal for processing the received signals to reproduce the high-definition video image on the display device and to reproduce the reduced resolution video image as an inset in the high-definition video image.
Claim 8
Dependent Claim
218 words
A high-definition television receiver and recorder which facilitates image reproduction in trick-play modes comprising: means for receiving a high-definition video signal which was encoded using both intra-frame and predictive encoding techniques comprising: decoding means for decoding the encoded high-definition video signal to produce a decoded digital signal representing a high-definition video image; decimating means, responsive to the decoded digital signal, for decreasing the number of samples in the decoded digital signal to produce a decimated video signal representing a video image having a reduced number of picture elements; means for encoding the decimated video signal, using intra-frame encoding techniques to the relative exclusion of predictive encoding techniques, to produce an encoded low-resolution video signal; a video tape recorder (VTR), having at least one trick-play mode, coupled to receive the encoded high-definition video signal and the encoded low-resolution video signal, the VTR including: means for separating each of the encoded high-definition video signal and the encoded low-resolution video signal into respective segments; means for interleaving ones of the segments of the high-definition video signal with respective ones of the segments of the low-resolution video signal to produce a combined signal; means for recording the combined signal on the video tape such that a substantial portion of the encoded low-resolution signal is recovered by the VTR in the trick-play mode.
Claim 9
Dependent Claim
218 words
A high-definition television receiver and recorder which facilitates image reproduction in trick-play modes comprising: means for receiving a high-definition video signal which was encoded using both intra-frame and predictive encoding techniques comprising: decoding means for decoding the encoded high-definition video signal to produce a decoded digital signal representing a high-definition video image; decimating means, responsive to the decoded digital signal, for decreasing the number of samples in the decoded digital signal to produce a decimated video signal representing a video image having a reduced number of picture elements; means for encoding the decimated video signal, using intra-frame encoding techniques to the relative exclusion of predictive encoding techniques, to produce an encoded low-resolution video signal; a video tape recorder (VTR), having at least one trick-play mode, coupled to receive the encoded high-definition video signal and the encoded low-resolution video signal, the VTR including: means for separating each of the encoded high-definition video signal and the encoded low-resolution video signal into respective segments; means for interleaving ones of the segments of the high-definition video signal with respective ones of the segments of the low-resolution video signal to produce a combined signal; means for recording the combined signal on the video tape such that a substantial portion of the encoded low-resolution signal is recovered by the VTR in the trick-play mode.
Claim 10
Dependent Claim
91 words
A high-definition television receiver and recorder according to claim 6 further comprising: means for receiving a further encoded high-definition video signal; further decoding means for decoding the further encoded high-definition video signal to produce a further decoded digital signal representing a further high-definition video signal; and means, coupled to receive the further decoded digital signal and the low-resolution video signal, for processing the received signals to reproduce the high-definition video image on the display device and to reproduce the reduced resolution video image as an inset in the high-definition video image.
Claim 11
Dependent Claim
34 words
A television receiver and recorder according to claim 7, wherein: the decimating means reduces the number of samples in the decimated video signal by a factor of one-fourth relative to the decoded 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) | 1998-12-18 | 1999-06-19 | 1999-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-18 | 2003-06-19 | 2003-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-18 | 2007-06-19 | 2007-12-19 | $7700.00 | Window Closed / Lapsed |