Stephen A Weinstein, 911460 Hummingbird Ln, Naples, FL 34105

7483411, Jan 27, 2009

Jan 30, 2002

10/058379

Stephen B. Weinstein - Summit NJ, US
Jun Li - Highland Park NJ, US
Junbiao Zhang - Highland Park NJ, US
Nan Tu - Princeton NJ, US

NEC Corporation - Tokyo

H04Q 7/24

370338, 370466

Public wireless communications will increasingly extend into wireless LAN (WLAN) environments in order to meet the ubiquitous access, high data rate, and local services demands of future Internet appliances. By relying on IP-level services mechanisms, the Public Access Mobility LAN (PAMLAN) can simultaneously support different air interfaces, franchises for multiple services providers, and a multi-segment LAN environment including handoffs. The PAMLAN supports virtual operator LANs representing different network services providers, authorization and accounting mechanism, support of multiple air interfaces, and local IP mobility. A router associated with each base station realizes this highly distributed IP networking environment, and a QoS-enabled switched Ethernet core supports virtual networks and QoS services.

2002017, Nov 21, 2002

Nov 21, 2001

09/989157

Junbiao Zhang - Highland Park NJ, US
Jun Li - Highland Park NJ, US
Stephen Weinstein - Summit NJ, US
Nan Tu - Princeton NJ, US

G06F015/16
H04L009/00

713/168000, 709/229000, 380/270000

Mobile users access the Internet and local network services at hot spots such as airports, hotels, coffee shops and vacation resorts. The mobile users' Internet Service Providers (ISPs) are used as the single point of contact for all authentication, accounting, and authorization (AAA) transactions. AAA transactions for such ISPs acting as “virtual operators” are handled according to a system entirely based on IP. Converging both the AAA process and data transmission at the IP layer works across multiple air interfaces and is interoperable with wireless LAN cards from different vendors.

4131767, Dec 26, 1978

Feb 22, 1978

5/880293

Stephen B. Weinstein - Holmdel NJ

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

H04B 320

1791702

An adaptive echo canceller for two-wire, simultaneous two-way data communication at full bandwidth uses Nyquist-interval, rather than baud-interval, processing to achieve independence from timing discrepancies between near-end and far-end terminals. The entire echo signal, and not merely baud-interval samples thereof, is suppressed. The echo canceller is preferably a transversal structure.

4453074, Jun 5, 1984

Oct 19, 1981

6/312705

Stephen B. Weinstein - Summit NJ

American Express Company - New York NY

G06K 500

235380

There is disclosed a protection system for intelligent cards. Each card has stored in it a code which is the encryption of a concatenation of a user secret password and a common reference text. The encryption is derived by an initialization terminal which uses the private key associated with the public key of a public-key cryptosystem key pair. Each transaction terminal with which a card is used decrypts the stored code in accordance with the public key. A transaction is effected only if the stored code decrypts into the user password which is inputted on a keyboard and the common reference text.

3932032, Jan 13, 1976

Apr 3, 1974

5/457625

Stephen B. Weinstein - Holmdel NJ

G03B 3102

352 11

A system is described for digital, as opposed to the usual analog, recording of a sound track in synchronism with a visual image on a motion picture film and automatically reproducing the sound in synchronism with the visual image. In one embodiment of the invention, a camera employs a linear array of light-emitting diodes across the sound track to enter a digital representation of the sound on the same frame as the synchronous visual image. The digital, specifically binary, signals which excite the light-emitting diodes are produced by analog to digital conversion of samples of the sound waveform. The binary representations are entered into shift registers at a uniform rate, and read out to the light-emitting diodes in a burst during the film advance interval immediately following shutter closure, thereby entering on the film track an optical record of all the binary pulses derived from sound produced during the just concluded frame interval. A projector capable of presenting the film sound and visual image in synchronism employs a strip of photodetectors to detect the binary pulses and a digital to analog converter to recover the original sound. Other embodiments of the invention utilize a fiber optics array, an image tube with fiber optic faceplate, or a laser scanner to enter the binary pulses on the optical sound track.

4253184, Feb 24, 1981

Nov 6, 1979

6/091832

Richard D. Gitlin - Monmouth Beach NJ
Stephen B. Weinstein - Holmdel NJ

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

H03K 5159
H04B 314

375 14

A quadrature amplitude-modulated (QAM) data signal receiver employs a phase compensation arrangement (16, 31, 33) before the equalizer (17). The arrangement utilizes the assumption that the frequency components typically present in the phase perturbance are power-line related. This enables an effective phase compensator to be of relatively low complexity compared to the equalizer (17). Since the compensator is "pretuned", only the phase and amplitude of the frequency components need be adaptively found. This makes for a relatively stable arrangement with a suitable convergence rate. In an alternative arrangement, a phase compensator (216, 233, 240) is provided for use after the equalizer (217).

5371532, Dec 6, 1994

May 15, 1992

7/884516

Alexander Gelman - Brooklyn NY
Haim Kobrinski - Colts Neck NJ
Lanny S. Smoot - Morris Township, Morris County NJ
Stephen B. Weinstein - Summit NJ

Bell Communications Research, Inc. - Livingston NJ

H04N 7173

348 7

A store-and-forward architecture which stores and distributes information programs to subscribers on demand includes: information warehouses which archive information programs from multiple service vendors and dispense information programs in segments to central offices in high speed bursts; central offices which manages subscriber's request for service and buffers segments of information programs for delivery to subscribers in real-time under the subscriber's interactive control; and customer premises equipment where a subscriber's requests and control signals for interactive play-out of information program are generated and information programs are received for the subscriber's use.

4074086, Feb 14, 1978

Sep 7, 1976

5/720999

David D. Falconer - Linkoping, SW
Stephen B. Weinstein - Holmdel NJ

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

H04B 324

1791702

An adaptive equalizer and echo canceller jointly respond to a common error difference between the actual output and the quantized digital output of a data receiver in a two-wire digital data transmission system to achieve simultaneous full-bandwith full-duplex operation. Two-wire transmission channels are typically terminated in hybrid balancing networks which because of their fixed impedances permit "echoes" of the transmitted signal to interfere with reception of the much weaker incoming signal. Both the equalizer and canceller are adaptively adjustable transversal structures.