Patent US2897122A successfully refreshed from Google Patents.
Patent US7500261B1 successfully refreshed from Google Patents.
US7500261B1
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Multi-point multi-channel data distribution system
Assignee: T Mobile Innovations LLC
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Filing: 2001-10-30
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Granted: 2009-03-03
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Expires: 2021-10-30
Abstract
Abstract A system for the efficient distribution of live and stored audio/video streams to multiple subscribers without degrading normal data delivery services. The system segments one or more frequency bands into sub-bands, or channels, each of which is capable of carrying encoded audio, video, and other data streams, to a plurality of subscribers. Each channel transmitted in the system provides full-duplex operation so that each subscriber may indicate what specific services are desired, such as audio/video broadcast, two-way data transfer, video library access, pay-per-view video, interactive video, and audio file transfer. A transmission headend facility (‘hub’) broadcasts multiple channels of video/audio data (e.g., Internet data) in unicast mode via a shared media transmission facility to multiple subscribers. Simultaneously, selected video/audio/data is transmitted in Internet Protocol multicast mode over one or more channels of the segmented frequency band. The subscriber is provided a device which simultaneously and dynamically demodulates 2 or more channels and interleaves the information over a single ethernet interface connected to one or more IP enabled devices. Each subscriber thus has the capability of, for example, receiving a video stream concurrent with many other subscribers while simultaneously interacting uniquely with the Internet or other data network.
Inventors
- 👤 Steven Duane Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:21
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/20; H04H; H04H20/00; H04H20/28; H04H20/33; H04H20/65; H04H20/71; H04H20/72; H04N21/00; H04N21/40; H04N21/43; H04N21/436; H04N21/43615; H04N21/438; H04N21/4382; H04N21/60; H04N21/63; H04N21/643; H04N21/64322
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
154 words
A wireless communication system comprising: a network transceiver configured to: receive a unicast signal; receive a multicast signal; process the unicast signal to generate a first wireless radio frequency (RF) signal modulated with the unicast signal; process the multicast signal to generate a second wireless RF signal modulated with the multicast signal; and simultaneously transmit the first wireless RF signal and the second wireless RF signal via a plurality of non-multiplexed channels; and a subscriber unit configured to simultaneously receive the first wireless RF signal and the second wireless RF signal, demodulate the first wireless RF signal into the unicast signal, demodulate the second RF signal into the multicast signal, multiplex the unicast signal and the multicast signal onto a local network for delivery of the unicast signal to a first device on the local network and delivery of the multicast signal to the first device and a second device on the local network.
Claim 2
Dependent Claim
154 words
A wireless communication system comprising: a network transceiver configured to: receive a unicast signal; receive a multicast signal; process the unicast signal to generate a first wireless radio frequency (RF) signal modulated with the unicast signal; process the multicast signal to generate a second wireless RF signal modulated with the multicast signal; and simultaneously transmit the first wireless RF signal and the second wireless RF signal via a plurality of non-multiplexed channels; and a subscriber unit configured to simultaneously receive the first wireless RF signal and the second wireless RF signal, demodulate the first wireless RF signal into the unicast signal, demodulate the second RF signal into the multicast signal, multiplex the unicast signal and the multicast signal onto a local network for delivery of the unicast signal to a first device on the local network and delivery of the multicast signal to the first device and a second device on the local network.
Claim 3
Dependent Claim
23 words
The wireless communication system of claim 1 wherein the subscriber unit is further configured to join a multicast transmission of the multicast signal.
Claim 4
Dependent Claim
15 words
The wireless communication system of claim 2 wherein the unicast signal comprises an Internet transmission.
Claim 5
Dependent Claim
15 words
The wireless communication system of claim 3 wherein the multicast signal comprises a television signal.
Claim 6
Dependent Claim
40 words
The wireless communication system of claim 4 further comprising the first device, wherein the first device comprises a first network interface card configured to receive the unicast signal and a second network interface card configured to receive the multicast signal.
Claim 7
Dependent Claim
13 words
The wireless communication system of claim 1 wherein the multicast signal comprises video.
Claim 8
Dependent Claim
13 words
The wireless communication system of claim 6 wherein the unicast signal comprises data.
Claim 9
Independent Claim
156 words
A method of wireless communication, the method comprising: in a network transceiver: receiving a unicast signal; receiving a multicast signal; processing the unicast signal to generate a first wireless radio frequency (RF) signal modulated with the unicast signal; processing the multicast signal to generate a second wireless RF signal modulated with the multicast signal; simultaneously transmitting the first wireless RF signal and the second wireless RF signal via a plurality of non-multiplexed channels; and in a first subscriber unit: simultaneously receiving the first wireless RF signal and the second wireless RF signal; demodulating the first wireless RF signal into the unicast signal; demodulating the second RF signal into the multicast signal; and multiplexing the unicast signal and the multicast signal onto a local network for delivery of the unicast signal to a first device on the local network and delivery of the multicast signal to the first device and a second device on the local network.
Claim 10
Independent Claim
156 words
A method of wireless communication, the method comprising: in a network transceiver: receiving a unicast signal; receiving a multicast signal; processing the unicast signal to generate a first wireless radio frequency (RF) signal modulated with the unicast signal; processing the multicast signal to generate a second wireless RF signal modulated with the multicast signal; simultaneously transmitting the first wireless RF signal and the second wireless RF signal via a plurality of non-multiplexed channels; and in a first subscriber unit: simultaneously receiving the first wireless RF signal and the second wireless RF signal; demodulating the first wireless RF signal into the unicast signal; demodulating the second RF signal into the multicast signal; and multiplexing the unicast signal and the multicast signal onto a local network for delivery of the unicast signal to a first device on the local network and delivery of the multicast signal to the first device and a second device on the local network.
Claim 11
Dependent Claim
19 words
The method of claim 8 further comprising: in the subscriber unit, joining a multicast transmission of the multicast signal.
Claim 12
Dependent Claim
13 words
The method of claim 9 wherein the unicast signal comprises an Internet transmission.
Claim 13
Dependent Claim
13 words
The method of claim 10 wherein the multicast signal comprises a television signal.
Claim 14
Dependent Claim
32 words
The method of claim 11 further comprising: in the first device, receiving the unicast signal via a first network interface card and receiving the multicast signal via a second network interface card.
Claim 15
Dependent Claim
11 words
The method of claim 8 wherein the multicast signal comprises video.
Claim 16
Dependent Claim
11 words
The method of claim 13 wherein the unicast signal comprises data.
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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) | 2012-03-02 | 2012-09-01 | 2013-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2016-03-02 | 2016-09-01 | 2017-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2020-03-02 | 2020-09-01 | 2021-03-03 | $7700.00 | Window Closed / Lapsed |