1
Feng Li, Shihe Li: Method of interference cancellation based on smart antenna. China Academy of Telecommunications Technology, Alston & Bird, October 28, 2003: US06639551 (43 worldwide citation)

This invention discloses an interference cancellation method based on smart antenna, which can solve various interference in mobile communication systems such as multipath propagation, etc., while using smart antenna. The invention includes the steps of: with a beam forming matrix, beam forming the ...


2
James Harry Alleman: Interactive telephone system for optimizing service economy. Cygnus Telecommunications Technology, John P Sutton, March 16, 1999: US05883964 (36 worldwide citation)

A central location of a telephone switching system is placed where favorable local exchange tariffs are available. The central location includes a caller responsive unit which compares the caller identification accompanying the call attempt against a prestored list of identification data assigned to ...


3
James Harry Alleman: Interactive telephone system for optimizing service economy. Cygnus Telecommunications Technology, March 7, 2000: US06035027 (24 worldwide citation)

A central location of a telephone switching system is placed where favorable local exchange tariffs are available. The central location includes a caller responsive unit which compares the caller identification accompanying the call attempt against a prestored list of identification data assigned to ...


4
Feng Li: Baseband processing method based on smart antenna and interference cancellation. China Academy of Telecommunications Technology, Alston & Bird, October 31, 2006: US07130365 (23 worldwide citation)

This invention discloses a baseband processing method based on smart antenna and interference cancellation. The method includes the steps of: A. making a channel estimation to get a channel response; B. picking up useful symbolic level signals from received digital signals by smart antenna beam form ...


5
Thomas Kummetz: Digital repeater having bandpass filtering, adaptive pre-equalization and suppression of natural oscillation. Andrew, Wood Herron & Evans, October 5, 2010: US07809047 (22 worldwide citation)

Repeaters, event those having digital processing, exist. The significant drawback of these digital repeaters is that the computational complexity or the processing speed has to be very high in order to guarantee, particularly when compensating for echo, that the necessary delay does not excessively ...


6
Andre Lubarsky Jr, G Scott Warner, Goro R Tahara: Switching system having a central controller for accessing individual telephone circuits for testing. Telecommunications Technology, Limbach Limbach & Sutton, February 28, 1978: US04076970 (22 worldwide citation)

A switching system for connecting any one of a plurality of electrical circuits to any one of a plurality of test positions, wherein a central controller including a microprocessor directs, in a pre-programmed manner, all necessary switching functions. In the preferred embodiment, the electrical cir ...


7
Lubarsky Jr Andre, Pospisil Richard E: Remote digital switching technique for use on communications circuits. Telecommunications Technology, Limbach Limbach & Sutton, June 4, 1974: US3814839 (20 worldwide citation)

A plurality of remote switching modules are positioned along a telephone communication circuit and are responsive to signals sent by a control unit along the same circuit. The control unit signal includes a plurality of bursts of bipolar digital pulses having a certain format with timed spaces betwe ...


8
Lubarsky Jr Andre, Warner G Scott: Remote digital switching technique for use on communications circuits. Telecommunications Technology, Limbach Limbach & Sutton, June 4, 1974: US3814840 (19 worldwide citation)

A plurality of remote switching modules are positioned along a telephone communication circuit and are responsive to signals sent by a control unit along the same circuit. The control unit signal includes a plurality of bursts of bipolar digital pulses having a certain format with timed spaces betwe ...


9
Feng Li, Xiaolong Ran: Method for improving smart antenna array coverage. China Academy of Telecommunications Technology, Alston & Bird, May 18, 2004: US06738016 (18 worldwide citation)

The invention relates to a method for improving smart antenna array coverage. Arbitrary beam forming of an antenna array can be implemented by adjusting n antenna units beam forming parameter W(n), based on difference of size and shape between coverage required in engineering design and actually rea ...


10
Raymond Whitman Jr: Resource assignment in a distributed environment. AT&T Intellectual Property I, Greenblum & Bernstein, June 23, 2009: US07551602 (15 worldwide citation)

Systems and methods for using softswitches in service center applications allow more efficient workforce utilization and more flexibility in staffing service centers. Communication between at least one force management system and at least one softswitch can be used to efficiently distribute service ...



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