US5831679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Network for retrieval and video transmission of information
Assignee: WAVO Corp
•
Filing: 1996-10-28
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Granted: 1998-11-03
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Expires: 2016-10-28
Abstract
Abstract Signal processors for permitting the transparent, simultaneous transmission and reception of a volume of information in the video bandwidth is disclosed. The volume of data is selected in response to receiving a signal at a transmitter site. The signal processor in the transmitter rasterizes the volume of information at the horizontal scanning rate and modulates the volume of information with a data carrier at a non-integral multiple of the horizontal scanning rate to provide a frequency interleaved combined signal. The combined signal is transmitted during the active video portion of each video line.
Inventors
- 👤 Gerald D Montgomery
- 👤 Jay B Norrish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:40
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/08; H04N7/081; H04N7/0803; H04N7/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
A method of transmitting data over a video network, the network having a plurality of channels, at least some of the channels having a rasterized video signal format, each video signal format having a bandwidth and active video intervals, the active video intervals separated by horizontal blanking intervals, the method comprising: sending a signal having low information content over a low bandwidth channel from a first site; receiving the signal at a second site; selecting a volume of information to be transmitted to the first site responsive to the received signal; furnishing the selected information at a high data rate; combining the selected information at a high data rate within the bandwidth of a video signal during active intervals for transmission over the video network to provide a combined signal; transmitting the combined signal through at least one of the channels; and receiving the transmitted combined signal at the first site; wherein the bandwidth includes luminance and chrominance spectra, the chrominance spectra having a chrominance subcarrier, the method further including combining the volume of information within the video signal bandwidth at a frequency greater than the chrominance subcarrier to produce a combined signal.
Claim 2
Independent Claim
193 words
A method of transmitting data over a video network, the network having a plurality of channels, at least some of the channels having a rasterized video signal format, each video signal format having a bandwidth and active video intervals, the active video intervals separated by horizontal blanking intervals, the method comprising: sending a signal having low information content over a low bandwidth channel from a first site; receiving the signal at a second site; selecting a volume of information to be transmitted to the first site responsive to the received signal; furnishing the selected information at a high data rate; combining the selected information at a high data rate within the bandwidth of a video signal during active intervals for transmission over the video network to provide a combined signal; transmitting the combined signal through at least one of the channels; and receiving the transmitted combined signal at the first site; wherein the bandwidth includes luminance and chrominance spectra, the chrominance spectra having a chrominance subcarrier, the method further including combining the volume of information within the video signal bandwidth at a frequency greater than the chrominance subcarrier to produce a combined signal.
Claim 3
Dependent Claim
180 words
A transmitter for transmitting data over a video network, the network having a plurality of channels, each channel having a rasterized video signal format, each video signal format having a bandwidth and active video intervals and a color carrier, the active video intervals separated by horizontal blanking intervals, the transmitter comprising: means for sending a signal having low information content over a low bandwidth medium from a first site; a first receiving device for receiving the signal at a second site; means for selecting a volume of information to be transmitted to the first site responsive to the received signal; means for furnishing the selected information at a data rate of greater than about 100 Kilobits per second; means for combining the selected information within the bandwidth of a video signal above the color carrier during the active intervals for transmission over the video network to provide a combined signal; a transmission device for transmitting the combined signal through at least one of the channels; and a second receiving device for receiving the transmitted combined signal at the first site.
Claim 4
Dependent Claim
180 words
A transmitter for transmitting data over a video network, the network having a plurality of channels, each channel having a rasterized video signal format, each video signal format having a bandwidth and active video intervals and a color carrier, the active video intervals separated by horizontal blanking intervals, the transmitter comprising: means for sending a signal having low information content over a low bandwidth medium from a first site; a first receiving device for receiving the signal at a second site; means for selecting a volume of information to be transmitted to the first site responsive to the received signal; means for furnishing the selected information at a data rate of greater than about 100 Kilobits per second; means for combining the selected information within the bandwidth of a video signal above the color carrier during the active intervals for transmission over the video network to provide a combined signal; a transmission device for transmitting the combined signal through at least one of the channels; and a second receiving device for receiving the transmitted combined signal at the first site.
Claim 5
Dependent Claim
114 words
The transmitter of claim 2, wherein the bandwidth includes luminance and chrominance components, the combining means further including: means for generating a carrier at an odd quarter, non-integral multiple of the frequency of the raster rate of the video signal of the at least one channel; means for modulating the carrier based upon the volume of information so that an amount of spectral energy of the modulated carrier is frequency interleaved with the chrominance and luminance components of the video signal of the at least one channel to provide a modulated signal; and means for injecting the modulated signal into the video signal bandwidth of the at least one channel during the active intervals.
Claim 6
Dependent Claim
51 words
The transmitter of claim 2, wherein the bandwidth includes luminance and chrominance spectra, the chrominance spectra having a vestigial chrominance sideband, and wherein the combining means combines the volume of information with the video signal in the bandwidth so that the volume of information lies substantially within the vestigial chrominance sideband.
Claim 7
Dependent Claim
71 words
The transmitter of claim 2, wherein the transmission device generates a carrier having a first phase and the receiving device tunes to the carrier at a second phase; the transmission device further comprising: means for inserting into the volume of data a phase synchronization marker; and means for synchronizing the first phase of the carrier generated by the transmission device to the second phase of the carrier at the receiving device.
Claim 8
Dependent Claim
14 words
The transmitter of claim 2, wherein the volume of information comprises graphical image data.
References Cited (Backward Citations)
US2635140A
Cited
US2838597A
Cited
US3530232A
Cited
US3529081A
Cited
US3543169A
Cited
US3632863A
Cited
US3700793A
Cited
US3726992A
Cited
US3679816A
Cited
US3845326A
Cited
US3927250A
Cited
US3925639A
Cited
US4074199A
Cited
US4051532A
Cited
US4155039A
Cited
US4141041A
Cited
US4065784A
Cited
US4209748A
Cited
US4424593A
Cited
US4183054A
Cited
US4231114A
Cited
US4177405A
Cited
US4208630A
Cited
US4379947A
Cited
US4513415A
Cited
US4354200A
Cited
US4551754A
Cited
US4538174A
Cited
US4479226A
Cited
US4450477A
Cited
US4539707A
Cited
US4665431A
Cited
US4556973A
Cited
US4660072A
Cited
US4805020A
Cited
US4622694A
Cited
US4586078A
Cited
US4647983A
Cited
US4578815A
Cited
US4745476A
Cited
EP0156709A1
Cited
US4602279A
Cited
US4695900A
Cited
US4626913A
Cited
US4670773A
Cited
JPS6192084A
Cited
JPS6220699A
Cited
US4639786A
Cited
US4591906A
Cited
JPS62236288A
Cited
US4750036A
Cited
US5177604A
Cited
EP0246698A2
Cited
US4800428A
Cited
JPS6346084A
Cited
JPS6386987A
Cited
EP0263449A2
Cited
US4750206A
Cited
US4688097A
Cited
US4884139A
Cited
EP0278192A1
Cited
US4831443A
Cited
US4855811A
Cited
EP0308241A2
Cited
JPS6489886A
Cited
US4807031A
Cited
US5075773A
Cited
US5136411A
Cited
US4985769A
Cited
US4879606A
Cited
EP0356903A2
Cited
US4969041A
Cited
EP0360615A2
Cited
US5157491A
Cited
EP0365431A1
Cited
US5057920A
Cited
US5014125A
Cited
US5063446A
Cited
US4958230A
Cited
JPH03148979A
Cited
US5029003A
Cited
US5142354A
Cited
US5103297A
Cited
US5157359A
Cited
US5103310A
Cited
US5319455A
Cited
US5172413A
Cited
US5200822A
Cited
WO1992022984A1
Cited
US5327237A
Cited
US5387941A
Cited
US5410360A
Cited
EP0530669A2
Cited
US5243423A
Cited
US5315617A
Cited
WO1994006627A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-02 | 2002-05-04 | 2002-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-02 | 2006-05-04 | 2006-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-02 | 2010-05-04 | 2010-11-03 | $7700.00 | Window Closed / Lapsed |