Yu S Yeh

US Patent:

6366588, Apr 2, 2002

Filed:

Feb 27, 1998

Appl. No.:

09/032166

Inventors:

Michael James Gans - Holmdel NJ
Laurence Eugene Mailaender - Hoboken NJ
Yu Shuan Yeh - Freehold NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04J 316

US Classification:

370468, 370206, 370320, 370335, 370342, 375240, 375261, 375268

Abstract:

A CDMA communication system is disclosed offering a near continuum of data rates up to a maximum rate. The disclosed CDMA communication system increases the data rate variability, without disturbing the orthogonality between users. An increased number of data rates is obtained by time multiplexing the data rates achievable with conventional CDMA systems to provide additional data rates for various multimedia applications. If a user is assigned a specific orthogonal code sequence, such as a Walsh sequence, which permits a maximum data rate, nR, with conventional systems, the user can obtain additional desired data rates up to the maximum rate nR, by time multiplexing the specific orthogonal code set. Desired bit rates are achievable for applications requiring bit rates that are not an integer multiple of the rates provided by conventional techniques. A fundamental rate of R or âfat pipeâ rates of powers-of-two multiples of the fundamental rate can be achieved in a conventional manner.

US Patent:

6496707, Dec 17, 2002

Filed:

Jan 23, 1998

Appl. No.:

09/012512

Inventors:

Ta-Shing Chu - Lincroft NJ
Michael J. Gans - Holmdel NJ
Yu Shuan Yeh - Freehold NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04Q 720

US Classification:

455525, 455561, 455513, 455552, 455524, 455436

Abstract:

For use in a wireless network having geographically-distributed base stations that serve wireless terminals, a system for, and method of, improving an operation of the wireless network. In one embodiment, the system includes: (1) a signal quality determination circuit that determines a relative quality of signals communicated between one of the wireless terminals and a set of base stations within range of the one of the wireless terminals and (2) a base station selection circuit, coupled to the signal quality determination circuit, that selects a base station in the set to serve the one of the wireless terminals based on the relative quality of signals.

US Patent:

20060074758, Apr 6, 2006

Filed:

Dec 6, 2005

Appl. No.:

11/294459

Inventors:

Yu Sung Yeh - New York NY, US
Darryl Shepherd - New York NY, US

Assignee:

NET2PHONE, INC. - Newark NJ

International Classification:

G06Q 30/00

US Classification:

705014000

Abstract:

A method comprising the steps of: receiving via internet a time, a date and a telephone number for a reminder telephone call (such as a wakeup call); storing in a database the time, date and telephone number of the reminder telephone call; and delivering to the subscriber via telephone the reminder telephone call at the specified time, date and telephone number. In one embodiment, the reminder call comprises a marketing message. In another embodiment, the method further comprises the steps of: receiving via the internet demographic information corresponding to the subscriber; matching the marketing message to the demographic information; and delivering the matched marketing message to the subscriber during the reminder telephone call. In other embodiments, the method further comprises the steps of receiving via the internet a personal reminder message or a selection for information, and delivering the personal reminder message or selected information to the subscriber during the reminder telephone call.

US Patent:

58546111, Dec 29, 1998

Filed:

Jul 24, 1995

Appl. No.:

8/506286

Inventors:

Michael James Gans - Monmouth Beach NJ
Yu Shuan Yeh - Freehold NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H01Q 322

US Classification:

342373

Abstract:

The present invention relates to an antenna system utilizing a power sharing network to facilitate linear operation of power amplifiers by equally distributing an electromagnetic communication signal to the plurality of power amplifiers provided in the antenna system of the present invention. The power sharing network configuration enables linear power amplifier sharing with an input signal. In particular, the present invention antenna system provides a circuit arrangement providing a greater number of linear power amplifiers relative to antenna elements provided.

US Patent:

56044623, Feb 18, 1997

Filed:

Nov 17, 1995

Appl. No.:

8/560450

Inventors:

Michael J. Gans - Holmdel NJ
Yu S. Yeh - Freehold NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H03F 368
H03F 326

US Classification:

330124R

Abstract:

An intermodulation distortion (IMD) detection system improves IMD reduction capability of power shared linear amplifier networks. In one embodiment, first and second power sharing networks, preferably Butler Matrices, are provided with a plurality of linear amplifier circuits coupled therebetween. A plurality of input signals are applied to respective input ports of the first power sharing network, with a portion of each input signal amplified by each amplifier circuit and then recombined in the second power sharing network so that each amplified input signal appears at only one output port of the second power sharing network. An antenna coupled to each of these output ports then radiates the amplified signal energy associated with one of the input signals. A test signal, which may be a dual tone signal, is applied to another input port of the first power sharing network, where it is split and amplified by each amplifier circuit. Each amplifier circuit includes detection circuitry for detecting IMD energy of the test signal produced in the amplifier, which is also indicative of the IMD energy generated due to the amplification of the input signals.

US Patent:

56106173, Mar 11, 1997

Filed:

Jul 18, 1995

Appl. No.:

8/503758

Inventors:

Michael J. Gans - Monmouth Beach NJ
Yu S. Yeh - Freehold NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H01Q 322

US Classification:

342373

Abstract:

The present invention provides a wireless communication system which employs Butler matrix combiners and circuit switching at transmitter and receiver antenna arrays to provide directive beamwidth capabilities. Such narrow beamwidths permit the communication system to determine and select the transmission path having an optimum signal quality. The antenna arrays are integrated in a multilayer construction which reduces power consumption, increases the coverage range, improves the efficiency of the antenna array, and which has lower fabrication costs.

US Patent:

55897975, Dec 31, 1996

Filed:

Sep 26, 1995

Appl. No.:

8/534371

Inventors:

Michael J. Gans - Monmouth Beach NJ
Yu S. Yeh - Freehold NJ

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H03F 126

US Classification:

330149

Abstract:

Disclosed is a low distortion amplifier circuit of the predistortion type that employs a cuber circuit in the predistortion path to provide optimized signal energy at third order intermodulation frequencies, which cancels IMD products generated by the main power amplifier. The cuber circuit employs a pair of anti-parallel diodes that are biased with at least one D. C. source to produce a D. C. current flow through each diode. The input signal applied to the cuber circuit produces signal current flow in each diode to enable a third order output current to be extracted. A desired amount of third order power is thereby provided to realize minimal IMD power in the main amplifier output over a wide dynamic range of the input signal. Using a circuit analysis based on a power series approach, circuit parameters of the cuber circuit can be optimized to provide a desired amount of cancellation of third order IMD products in the main amplifier, without generating excessive higher order power, over an optimized dynamic range of the input signal.

US Patent:

45120340, Apr 16, 1985

Filed:

Jul 11, 1983

Appl. No.:

6/512603

Inventors:

Lawrence J. Greenstein - Edison NJ
Yu S. Yeh - Freehold NJ

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04B 708

US Classification:

455139

Abstract:

The present invention relates to a space diversity combiner which includes two branches wherein separate multipath signals received from a remote source are propagated. The branch signals are combined and the combiner output signal is used for obtaining noncoherent spectrum measurements which are in turn used to account for both dispersion and noise in controlling the relative amplitudes and phases of the two branch signals to provide a maximum performance measure for the combiner.

Address:

23152 Maple Ave, Torrance, CA 90505

VIN:

5J8TB18527A005509

Make:

ACURA

Model:

RDX

Year:

2007