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Fisher-Jeffes, MA

Timothy Fisher-Jeffes, Cambridge, MA US

Patent application numberDescriptionPublished
20080240067TIME SHARED RAKE FINGERS AND PATH SEARCHER - A rake receiver having a rake receiver finger operated in a time multiplexed manner to perform the task a plurality of fingers, each of these fingers being a virtual finger allocated to a time slot in an operation cycle of the rake receiver finger, and wherein a buffer is provided for buffering at least one received chip of data, and where a spare virtual finger is provided such that any virtual finger may request extra processing within an operation cycle of the time multiplexed rake receiver finger.10-02-2008
20080260009Combine Time Multiplexed Pilot (TMP) Derotation with Descrambling and Despreading in Data Correlators Used by Rake Receivers - The invention provides a code modification circuit for receiving a descrambling/dispreading code at a first input pair thereof and a pilot derotation code at a second input pair thereof, and arranged to combine the codes to form a combined code for providing to a correlator such that the correlator can recover data or a pilot signal from an input sequence supplied thereto.10-23-2008
20080267263Shared Filter Design for Pilot Symbol Averaging in Rake Fingers in WCDMA Systems - A rake receiver having a shared moving average filter that is operable in a multiplexed manner to receive and filter outputs from a plurality of pilot signal correlators.10-30-2008

Timothy Perrin Fisher-Jeffes, Cambridge, MA US

Patent application numberDescriptionPublished
20090161648TD-SCDMA UPLINK PROCESSING - A wireless device has a BRP-CRP interface that includes a dual-port frame memory having a first access port and a second access port in which data can be written to the dual-port frame memory through the first access port at the same time that data is read from the dual-port frame memory through the second access port. A bit rate processor performs bit rate processing on input data and writes data resulting from the bit rate processing to the dual-port frame memory through the first access port. A chip rate processor reads data from the dual-port frame memory through the second access port and performs chip rate processing on the data read from the dual-port frame memory. A data processor executes a software application that writes data to the dual-port frame memory through the first access port and reads data from the dual-port frame memory through the second access port.06-25-2009
20090161742Receiver Bit Rate Processing - This patent application relates generally to wireless communications systems, and, more particularly, mobile station receiver architecture.06-25-2009
20090161745Parameter Estimation for Modulated Signals - A system includes a receiver for receiving a modulated signal. The receiver includes a gain estimator for converting complex data representative of constellation points of the modulated signal into scalar data representation. The gain estimator is configured to fold a first portion of the scalar data representation onto a second portion of the scalar data representation. The gain estimator is further configured to estimate a constellation gain value from the folded first portion and the second portion of the scalar data representation.06-25-2009
20090161796System for Processing Common Gain Values - A method includes receiving data elements representative of constellation points of a modulated signal. Each data element includes a gain. The method also includes identifying a common gain value among the received data elements, and adjusting the data elements to include the common gain value.06-25-2009
20090161799DECODING COMMUNICATION SIGNALS - A method includes identifying a soft decision from a constellation point of a modulated signal. The identification is based upon a logical combination of data representing a first and second portion of the constellation point, data representing an arrangement of the first and second portions of the constellation point, and data representing a scrambling of the first and second portions of the constellation point.06-25-2009
20090165019Data Flow Control - A method includes receiving data in a first data processing module, and enabling a second data processing module when at least one signal time slot of the received data comprises data that complies with a first data transmission standard. The method also includes exchanging signals between the first data processing module and software executing in a processor, and determining that a software configuration of the second data processing module has been completed. The method also includes processing the data in the second data processing module for the at least one signal time slot, and enabling a third data processing module upon a completion of processing at least one data block in the second data processing module, and determining that a software configuration of the third data processing module has been completed, the at least one data block comprising multiple signal time slots.06-25-2009