Motorola Corporation

Other

Motorola Computer Systems, Inc.

Motorola Mobility LLC

Thomas A Freeburg

Paul Odlyzko

Richard E White

Dale Robert Buchholz

Jay R Krebs

Daniel B Grossman

Hungkun J Chang

Michael P Nolan

Lisa B Johanson

I Riley Jackson, Jr Ii

John Ley

Timothy M Burke

William K Doss

Scott W Noble

Bradley C Davis

Carl R Tarver

James J Berken

John M Kaczmarczyk

John W McKown

Larry W Brunner

Rachid M Alameh

David Howard Sitrick

Ivan Vukovic

Gary D Schulz

Thomas V D'Amico

James Edward Thomas

Bruce C Eastmond

Quirino Balzano

James E Mitzlaff

James A McDonald

Duke Larsen

Rudolph William Krolopp

Manohar A Joglekar

Jerry L Sandvos

Arman V Dolikian

Ross E Ruthenberg

Thomas F Kneisel

Dennis E Burke

Michael A Stepien

Krzysztof M Duch

Louis P Dellaverson

Charles L Warren

James D McGrath

Scott D Munier

Susan M Whitney

William W Milleker

Kenneth J Marx

Greogory J Bedlek

Paul Linsay

Irvin R Jackson

Gregory J Bedlek

Paul J Rohret

Roy T Ogasawara

Dale R Buchhlz

Farzad Farhangnia

Mark Taylor

Jeffrey W Manning

Rita O'Brien

Anne M Pearce

Ivan N Vukovic

Irvin Riley Jackson, Ii

Lawrence R Pajakowski

C R Tassle

Donald F Dautel

Willy Gehardt

William Kevin Doss

John Mckown

Apparatuses and methods for multiplexing of DS1 traffic across wired and wireless Ethernet devices. A transmitter sends data packets to a receiver through an Ethernet system. The transmitter includes a modeling module that constructs a modeled jitter buffer corresponding to a receiver jitter buffer located at the receiver. The transmitter also includes a packetizing buffer that collects data to form data packets, that inserts buffer pointers into the data packets, and that sends the data packets through the Ethernet system. A buffer pointer is determined from the modeled jitter buffer. The receiver includes an Ethernet interface module that obtains the data packets from the Ethernet system, a jitter buffer, and a depacketizer that reads a buffer pointer in the data packet and that places the data packet into a position within the receiver jitter buffer in accordance with the buffer pointer.

Multiplexing of DS1 traffic across wired and wireless Ethernet devices

A node within a communication system periodically broadcasts its interference status to neighboring nodes within the communication system. Additionally, the node receives an interference status from all neighboring nodes. If communication is desired with a neighboring node, the node accesses the stored table for the particular neighboring node and determines an optimal time for transmission to the neighboring node. This is accomplished by utilizing the table received from the neighboring node and determining the neighboring node's optimal times for reception.

Method and apparatus for transmitting information within a communication system

A radio communications system ( ) having a mobile station ( ) and at least two base stations ( ). ATM radio channels ( ) are provided between the remote station and the base stations. Each of the ATM channels supports communication though ATM cells over a common frequency band. When handoff conditions are met for a handoff from the first base station to the second base station, a second virtual path identifier and a second virtual connection identifier are selected for a connection between the second base station and the remote station.

Method of handoff between base stations in a wireless communications system

Methods and devices for reducing undesired signals in a communication environment. At least two distinct composite signals (X and X ) are transmitted from a first communication environment ( ). A noise coefficient of the first communication environment ( ) based on the at least two distinct composite signals (X and X ) is calculated. At least two noise canceling signals based on the noise coefficient are calculated. The at least two noise canceling signals are added to an incoming signal (Y ) from a second communication environment ( ) to produce at least two combined signals. The at least two combined signal are transmitted into the first communication environment ( ).

Method and system for reducing undesired signals in a communication environment

It is a method of communicating amongst a network of networked computing entities to provide feedback to a user representative of a group social behavior comprising and providing a uniform data structure for each said computing entity which defines group social behavior simulation and the data structure comprising interaction rules and initial conditions. The interaction rules are comprised of fixed and variable elements. The initial conditions are comprised of fixed, variable and random elements&mdash;modifying the variable elements of the interaction rules and the initial conditions responsive to interaction of the networked computing entities and exhibiting feedback of the group social behavior simulation to the user of at least one of the computing entities.

Electronic interactive gaming apparatus, system and methodology

Methods and devices for reducing undesired signals in a communication environment. At least two distinct composite signals (X.sub.1 and X.sub.2) are transmitted from a first communication environment (260). A noise coefficient of the first communication environment (260) based on the at least two distinct composite signals (X.sub.1 and X.sub.2) is calculated. At least two noise canceling signals based on the noise coefficient are calculated. The at least two noise canceling signals are added to an incoming signal (Y.sub.3) from a second communication environment (280) to produce at least two combined signals. The at least two combined signal are transmitted into the first communication environment (260).

Method and system for reducing undesired signals in a communication

A radio communications system (10) having a mobile station (30) and at least two base stations (13, 14). ATM radio channels (31, 32) are provided between the remote station and base stations. Each of the ATM channels supports communication though ATM cells over a common frequency band. At least one ATM node (21) is coupled to the base stations. A base station controller (11) is coupled to the ATM node. The base station controller has a combiner (303) for combining cell streams received from the first and second base stations and an ATM signalling circuit (330) for sending ATM commands to the ATM node for dividing cell streams at the ATM node to the first and second base stations. The remote station (30) has a logic unit (520) for combining cell streams received from the first and second base stations during a handoff from the first base station to the second base station.

Method of combining cell streams in a radio communications system

A method of operation of a network (10) of radio stations (e.g. 11, 12 and 13) in which each radio station communicates with at least two other radio stations. A message (32) is sent and a corresponding reply (35) is received between first and second stations (11 and 12). Similar messages are sent between second and third stations (12 and 14) and the first and third stations (11 and 14). A time delay is measured between sending of each message and receiving the corresponding reply. Distances are calculated between each station and each other station and, from the distances, locations for the second and third stations relative to the first station are calculated.

Radio network and method of operation with location computation

In a method of calibration of a voltage controlled oscillator (VCO), the VCO (100) provides an output signal which is used to drive a dividing oscillator (10) such as a relaxation oscillator (RO). The RO has at least two states, one in which the RO provides an output signal which has a first frequency that is related to the VCO output signal by a first ratio (e.g. 1/N) and one in which the relaxation oscillator provides a RO output signal which has a second frequency that is related to the VCO output signal by a second ratio (e.g. 1/(N+1)). By measuring the first and second frequencies (and knowing the relationship between the first and second ratios), the VCO frequency is calculated and stored (110). Several VCO frequencies can be calculated and stored for several applied voltages. As a result the VCO can be driven to any selected frequency in the calibrated range and can be used to provide an injection frequency for a radio.

Oscillator calibration method and circuit and radio with oscillator

A radio communications system (10) having a remote or mobile station (30) and at least two base stations (13, 14). ATM radio channels (31, 32) are provided between the remote station and base stations. The remote station (30) has a logic unit (520) for combining cell streams received from the first and second base stations during a handoff from the first base station to the second base station. A receiver in the remote station (30) is powered up during first time periods corresponding to physical layer synchronization cells arriving from one base station (13) and second time periods corresponding to ATM cells arriving from the other base station. When handoff conditions are met, the receiver is powered up for a third time period longer than the first and second time periods.

Power control of a remote station of a radio communications system

A radio unit (12) for communication over a communication channel (300) having repeating frames. The radio unit has a memory (131) with a table (280) of time locations in a frame and indications of the availability of time locations for transmission. A time is selected from the table and a cell of data is transmitted on the channel at the selected time. If an acknowledgement to the cell is received at a receiver (102) the transmitter sends a series of further cells at corresponding times in later frames. Otherwise a different time is selected for a new access attempt. A sequence of ATM cells is prepared for transmission by forming data into cells each having synchronization information (230), a physical layer field (251), a sequence number (253) and an error check number (254). Error coding cells (245) are added, with error coding which is spread across the cells such that a lost cell is recoverable from adjacent cells.

Radio unit, method of communicating between radio units over a

A wide bandwidth frequency discriminator circuit (200) employs a wide bandwidth limiting amplifier (202) to amplify the IF signal portion of a received RF signal. A frequency-to-voltage circuit 208 is provided having a bandwidth substantially greater than the bandwidth of the IF signal. This discriminator (200) operates to form a detection system capable of discriminating between desired and undesired components of the received RF signal even when said desired and undesired components are nearly identical in amplitude. This is due in part to the enhanced frequency response provided by the discriminator (200).

Wide bandwidth discriminator for use in a radio receiver

Asynchronous transfer mode radio communications system with handoff and

A target device (18) performs the steps of receiving a broadcast message via an out-of-band paging network (14) which message includes an identification of the sourcing device. The subscriber (18) automatically registers, responsive to the receipt of the broadcast message, with a local communication server (22) associated with an in-band communications network (12). The target subscriber (18) then uses the identification of the sourcing device (16) to respond to the communication from the sourcing device (16) to establish a communication path therewith through the local communication server (22). In a preferred embodiment, the target subscriber unit and method reside in an asynchronous transfer mode (ATM) network. In this manner, the present invention establishes a direct communication path between the local communications server (22) to which the target subscriber unit (18) is attached and the sourcing device (16) thereby minimizing network trafficking and inefficiency problems.

Target device and method for establishing a communication path in a

A shared spectrum communications unit and system provides communications without interfering with incumbent point-to-point receivers. This system includes a transmitter (e.g., of a PCS device) and a geographical location device which is operatively associated with the transmitter. The geographical locating device determines the position of the transmitter, and provides position information to a frequency authorization device. Geographical information pertaining to the PCS device is compared with the locations of the incumbent point-to-point receivers, using a database of the frequency authorization device including the locations of the point-to-point receivers, and a frequency allocation/authorization is generated to the PCS device when the PCS device is located outside of a predetermined range associated with local point-to-point receivers. An authorized frequency is stored and employed by the frequency authorization device for control of the operating frequency of the PCS device.

Frequency allocation for shared spectrum transmitter based on location

Growing community of inventors

Arlington Heights, IL, United States of America

Thomas A Freeburg