Anthony C Francesca

US Patent:

7353004, Apr 1, 2008

Filed:

Jun 14, 2002

Appl. No.:

10/172777

Inventors:

Anthony Francesca - Pleasanton CA, US
WeiMin Zhang - San Jose CA, US

Assignee:

Broadlogic Network Technologies, Inc. - San Jose CA

International Classification:

H04B 1/02
H04B 1/66

US Classification:

455102, 455103, 455 91, 455561, 455 301, 455 305, 370535, 370536, 370537, 370252, 370345

Abstract:

The system of a content head end of a distribution system includes a program multiplexer, a multi-channel modulating module, a channel multiplexer, a digital-to-analog converter and a frequency block-up converter, all arranged in a sequential configuration. Packets representing respective content programs are fed to the program multiplexer. The program multiplexer multiplexes the packets into an output queue. Packets from the output queue are then fed to the multi-channel modulating module. The multi-channel modulating module receives the packets and routes them to various modulators representing corresponding RF channels. The various modulators then modulate the respective packets to generate corresponding RF signals. These RF signals are then multiplexed by the channel multiplexer into a multi-channel RF signal. The multi-channel RF signal is then forwarded to the digital-to-analog converter for conversion into an analog, multi-channel RF signal.

US Patent:

20020155829, Oct 24, 2002

Filed:

Apr 24, 2001

Appl. No.:

09/841695

Inventors:

James Proctor - Indialantic FL, US
Anthony Francesca - Pleasanton CA, US

Assignee:

Tantivy Communications, Inc. - Melbourne FL

International Classification:

H04Q007/20

US Classification:

455/423000, 455/067100, 455/560000

Abstract:

In a wireless telecommunications network, wireless transmissions are carried via an RF medium between users and a central wireless transceiver, or base station processor. A subscriber access unit connected to a user device such as a user PC is employed to transmit wireless messages to and from the base station processor. Multiple, simultaneous wireless transmissions to the base station from different subscriber access units can have a tendency to interfere with each other. Subscriber access units employing an omnidirectional antenna or which are highly mobile will tend to experience more interference than stationary users or subscriber access units employing a directional antenna. The allocation of wireless transmission resources to retransmit wireless messages over a lossy link can have a detrimental effect on wireless resources available for other users. A system which allows a subscriber access unit to register device capabilities with a base station processor to determine the degree to which a particular subscriber access unit may be prone to interference provides computation and adjustment of transmission constraints for each subscriber access unit accordingly to maximize throughput.

US Patent:

20050254458, Nov 17, 2005

Filed:

Jul 21, 2005

Appl. No.:

11/187141

Inventors:

James Proctor - Indialantic FL, US
Anthony Francesca - Pleasanton CA, US

Assignee:

IPR Licensing, Inc. - Wilmington DE

International Classification:

H04Q007/00
H04B007/216

US Classification:

370328000

Abstract:

In a wireless telecommunications network, wireless transmissions are carried via an RF medium between users and a central wireless transceiver, or base station processor. A subscriber access unit connected to a user device such as a user PC is employed to transmit wireless messages to and from the base station processor. Multiple, simultaneous wireless transmissions to the base station from different subscriber access units can have a tendency to interfere with each other. Subscriber access units employing an omnidirectional antenna r which are highly mobile will tend to experience more interference than stationary users or subscriber access units employing a directional antenna. The allocation of wireless transmission resources to retransmit wireless messages over a lossy link can have a detrimental effect on wireless resources available for other users. A system which allows a subscriber access unit to register device capabilities with a base station processor to determine the degree to which a particular subscriber access unit may be prone to interference provides computation and adjustment of transmission constraints for each subscriber access unit accordingly to maximize throughput.