IP Library Granted Patent US 9,264,671
Granted Patent B2
US 9,264,671 · App. 14/594,811 · Granted Feb 16, 2016

Video transmission system having unicast and multicast modes and methods for use therewith

Inventors: Jeyhan Karaoguz (Irvine, CA); Sherman (Xuemin) Chen (Rancho Santa Fe, CA); Michael Dove (Los Gatos, CA); David Rosmann (Irvine, CA); Thomas J. Quigley (Franklin, NC); Stephen E. Gordon (Lexington, MA)
Assignee: BROADCOM CORPORATION
H04N7/17318H04N7/17336H04N21/2393H04N21/25841H04N21/266H04N21/41407H04N21/6131H04N21/6405H04N21/6408
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Quick Facts
Patent No.
US 9,264,671
App. No.
14/594,811
Granted
Feb 16, 2016
Kind
B2
Abstract

A video transmission system includes a video server module that selectively operates in a unicast mode and a multicast mode, wherein the video server module generates a video signal that includes a unicast video signal when the video server module is in the unicast mode and that includes a multicast video signal when the video server module is in the multicast mode. A wireless access device transmits the video signal to at least one mobile video device.

Claims (36)

1. A video server comprising:

a memory;

a processor coupled to the memory configured to:

select a unicast mode in response to a request for video content from a single mobile video device via a network and that receives location data from a plurality of mobile video devices via the network;

select a multicast mode in response to multiple requests for the video content from the plurality of mobile video devices and an analysis of the location data that indicates that the plurality of mobile video devices are within a common proximity; and

generate a video signal for transmission to the single mobile video device via the network when the unicast mode is selected and for transmission to the plurality of mobile video devices via the network when the multicast mode is selected.

2. The video server of claim 1 wherein the video signal includes a mode indication that indicates one of: the unicast mode or the multicast mode.

3. The video server of claim 2 wherein a wireless access device (WAD) wirelessly transmits the video signal in accordance with a unicast WAD mode when the mode indication indicates the unicast mode.

4. The video server of claim 3 wherein the wireless access device wirelessly transmits the video signal in accordance with a multicast WAD mode when the mode indication indicates the multicast mode.

5. The video server of claim 4 wherein the wireless access device employs a first transmit power level in the unicast WAD mode, and a second transmit power level in the multicast WAD mode.

6. The video server of claim 4 wherein the wireless access device employs a first antenna beam pattern in the unicast WAD mode, and a second antenna beam pattern in the multicast WAD mode.

7. The video server of claim 1 wherein the processor selects the multicast mode based on correlating the location data to roads located in a vicinity of the plurality of mobile video devices.

8. The video server of claim 1 wherein the processor selects the multicast mode based on correlating the location data to places of interest located in a vicinity of the plurality of mobile video devices.

9. A method comprising:

selecting, via a video server, a unicast mode in response to a request for video content from a single mobile video device;

receiving, via a video server, multiple requests for the video content and location data from a plurality of mobile video devices;

analyzing, via a video server, in response to the multiple requests, the location data to determine when the plurality of mobile video devices are within a common proximity;

selecting, via a video server, a multicast mode when the plurality of mobile video devices are within the common proximity; and

generating, via a video server, a video signal for transmission that includes a unicast video signal when the unicast mode is selected and that includes a multicast video signal when the multicast mode is selected.

10. The method of claim 9 wherein selecting the multicast mode includes correlating the location data to roads located in a vicinity of the plurality of mobile video devices.

11. The method of claim 9 wherein selecting the multicast mode includes correlating the location data to places of interest located in a vicinity of the plurality of mobile video devices.

12. The method of claim 9 wherein the video signal includes a mode indication, and the method further comprises:

selecting one of: a unicast wireless access device (WAD) mode and a multicast WAD mode, in response to the mode indication.

13. The method of claim 12 further comprising:

selectively adjusting a WAD transmit power level based on a selection of either the unicast WAD mode, or the multicast WAD mode.

14. The method of claim 12 further comprising:

selectively adjusting a WAD antenna beam pattern based on a selection of either the unicast WAD mode, or the multicast WAD mode.

15. A video transmission system comprising:

a video server module that selectively operates in a unicast mode in response to a request for video content from a single mobile video device via a network and that receives location data from a plurality of mobile video devices via the network and that selectively operates in a multicast mode in response to multiple requests for the video content from the plurality of mobile video devices and an analysis of the location data that indicates that the plurality of mobile video devices are within a common proximity;

wherein the video server module generates a video signal that includes a unicast video signal when the video server module is in the unicast mode and that includes a multicast video signal when the video server module is in the multicast mode; and

wherein the video server module sends the video signal to the single mobile video device via the network in the unicast mode and to the plurality of mobile video devices via the network in the multicast mode.

16. The video transmission system of claim 15 wherein the video signal includes a mode indication that indicates one of: the unicast mode or the multicast mode.

17. The video transmission system of claim 16 wherein a wireless access device (WAD) wirelessly transmits the video signal in accordance with a unicast WAD mode when the mode indication indicates the unicast mode and wherein the wireless access device wirelessly transmits the video signal in accordance with a multicast WAD mode when the mode indication indicates the multicast mode.

18. The video transmission system of claim 17 wherein the wireless access device employs a first transmit power level in the unicast WAD mode, and a second transmit power level in the multicast WAD mode.

19. The video transmission system of claim 15 wherein the video server module selects the multicast mode based on correlating the location data to roads located in a vicinity of the plurality of mobile video devices.

20. The video transmission system of claim 15 wherein the video server module selects the multicast mode based on correlating the location data to places of interest located in a vicinity of the plurality of mobile video devices.

Assignments (7)
CORRECTIVE ASSIGNMENT TO CORRECT THE PATENT NUMBER 9,385,856 TO 9,385,756 PREVIOUSLY RECORDED AT REEL: 47349 FRAME: 001. ASSIGNOR(S) HEREBY CONFIRMS THE MERGER. Recorded Mar 22, 2019
From: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
To: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
Reel/Frame 051144/0648 →
CORRECTIVE ASSIGNMENT TO CORRECT THE EFFECTIVE DATE PREVIOUSLY RECORDED ON REEL 047229 FRAME 0408. ASSIGNOR(S) HEREBY CONFIRMS THE THE EFFECTIVE DATE IS 09/05/2018. Recorded Oct 29, 2018
From: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
To: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
Reel/Frame 047349/0001 →
MERGER Recorded Oct 4, 2018
From: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
To: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
Reel/Frame 047229/0408 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Feb 3, 2017
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: BROADCOM CORPORATION
Reel/Frame 041712/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2017
From: BROADCOM CORPORATION
To: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
Reel/Frame 041706/0001 →
PATENT SECURITY AGREEMENT Recorded Feb 11, 2016
From: BROADCOM CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 037806/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 20, 2015
From: KARAOGUZ, JEYHAN; CHEN, (SHERMAN) XUEMIN; DOVE, MICHAEL; ROSMANN, DAVID; QUIGLEY, THOMAS J.; GORDON, STEPHEN ELLIOTT
To: BROADCOM CORPORATION
Reel/Frame 035445/0185 →
Continuity (3)
Continuation 12190024 · Aug 12, 2008
Provisional Application 61054677 · May 20, 2008
Related Publication 20150128202A1 · May 7, 2015