Hakim Mohsin Mesiwala

6909709, Jun 21, 2005

Dec 14, 2000

09/738076

Hakim Mesiwala - Cupertino CA, US

AltiGen Communications, Inc. - Fremont CA

H04L012/66

370352, 370389, 370516

A method for operating a telecommunications server includes receiving a plurality of data packets, each data packet including an associated chronological time stamp, storing the plurality of data packets in a first buffer, determining a first data packet from the plurality of data packets indicating a lead data packet, the first data packet stored in a first location in the first buffer, determining a timing offset in response to a chronological time stamp associated with the first data packet and a pre-determined session time stamp, storing a portion of the first data packet at a first location in a second buffer, the first location associated with the pre-determined session time stamp, retrieving a second data packet from the plurality of data packets in a second location in the first buffer, determining a session time stamp associated with the second data packet in response to a chronological time stamp associated with the second data packet and to the timing offset, storing a portion of the second data packet at a second location in the second buffer, the second location associated with the session time stamp associated with the second data packet, and retrieving the portion of the first data packet from the second buffer.

6928078, Aug 9, 2005

Dec 14, 2000

09/738629

Hakim Mesiwala - Cupertino CA, US
Yi Zhang - San Jose CA, US

Altigen Communications, Inc. - Fremont CA

H04L012/56

370394, 370389, 370352

A method for operating a telecommunications server includes receiving a plurality of data packets, each data packet including an associated chronological time stamp, storing the plurality of data packets in a first buffer, determining a first data packet from the plurality of data packets indicating a lead data packet, the first data packet stored in a first location in the first buffer, determining a timing offset in response to a chronological time stamp associated with the first data packet and a pre-determined session time stamp, storing a portion of the first data packet at a first location in a second buffer, the first location associated with the pre-determined session time stamp, retrieving a second data packet from the plurality of data packets in a second location in the first buffer, determining a session time stamp associated with the second data packet in response to a chronological time stamp associated with the second data packet and to the timing offset, storing a portion of the second data packet at a second location in the second buffer, the second location associated with the session time stamp associated with the second data packet, and retrieving the portion of the first data packet from the second buffer.

20050031131, Feb 10, 2005

Aug 7, 2003

10/637960

Raymond Browning - San Carlos CA, US
George Anwar - Hercules CA, US
Shahar Ben-Menahem - Menlo Park CA, US
Ali Jabbari - Oakland CA, US
Lawrence Leske - Belmont CA, US
David Medin - Los Altos CA, US
Hakim Mesiwala - Cupertino CA, US

H04R029/00
H04R003/00

381059000, 381096000

Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry which receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation. COMPUTER PROGRAM LISTING APPENDIX

20050031133, Feb 10, 2005

Aug 7, 2003

10/638197

Raymond Browning - San Carlos CA, US
George Anwar - Hercules CA, US
Shahar Ben-Menahem - Menlo Park CA, US
Ali Jabbari - Oakland CA, US
Lawrence Leske - Belmont CA, US
David Medin - Los Altos CA, US
Hakim Mesiwala - Cupertino CA, US

H04R029/00
H04R003/00

381059000, 381096000

Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry which receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation.

20050031137, Feb 10, 2005

Aug 7, 2003

10/638198

Raymond Browning - San Carlos CA, US
George Anwar - Hercules CA, US
Shahar Ben-Menahem - Menlo Park CA, US
Ali Jabbari - Oakland CA, US
Lawrence Leske - Belmont CA, US
Hakim Mesiwala - Cupertino CA, US

H04R029/00
H04R003/00
H04R001/00

381096000, 381059000, 381400000

Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry which receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation.

20060104451, May 18, 2006

Aug 7, 2003

10/638201

Raymond Browning - San Carlos CA, US
George Anwar - Hercules CA, US
Shahar Ben-Menahem - Menlo Park CA, US
Ali Jabbari - Oakland CA, US
Lawrence Leske - Belmont CA, US
David Medin - Los Altos CA, US
Hakim Mesiwala - Cupertino CA, US

H04R 29/00

381059000, 381058000

Control system for devices such as an audio reproduction system, an actuator device, an electromechanical device and a telephony device. The system includes control circuitry that receives an input signal and a signal indicative of a position of a portion of the controlled apparatus. The control circuit provides an output signal to the controlled apparatus to affect an operation of the controlled apparatus. The output signal provides control of the apparatus to compensate for one or more of: motor factor; spring factor; back electromotive force; and impedance of a coil in a driver of the controlled apparatus. The signal indicative of position is derived by one or more position indicator techniques such as an infrared LED and PIN diode combination, position dependent capacitance of one portion of the controlled apparatus with respect to another portion of the controlled apparatus, and impedance of a coil in the controlled apparatus. The control circuitry is configurable to control transconductance and/or transduction of the system being controlled. A technique is disclosed to detect and measure a cant of a voice coil transducer, the technique including measuring a capacitance between one portion of the voice coil transducer with respect to another portion of the voice coil transducer over a range of movement of the voice coil during operation.

58647937, Jan 26, 1999

Aug 6, 1996

8/693374

Hakim M. Mesiwala - Cupertino CA
Shawn R. McCaslin - Austin TX

Cirrus Logic, Inc.

G10L 302

704214

A signal detector for detecting the presence of a intermittent signal component in a signal. The signal detector receives each of the signal strength samples during a corresponding iteration, and compares a threshold value with the received signal sample. The signal detector sets a counter to a pre-determined number if the sample compared is greater than the threshold value. The signal detector decrements the persistence counter if a corresponding sample is not greater than the threshold value. If the persistence counter is greater than a trigger value, the detector indicates the presence of a intermittent signal component or otherwise declares the absence of a intermittent signal component. The detector may indicate the presence of a intermittent signal component by a logical value of 1 and the absence by a logical value of 0. The threshold value is composed of two components; the intermittent signal component and the background signal component.

60977760, Aug 1, 2000

Feb 12, 1998

9/022530

Hakim M. Mesiwala - Cupertino CA

Cirrus Logic, Inc. - Fremont CA

H04L 700

375355

The present invention describes a method of estimating the symbol time offset in a received signal of a data modem using only one received synchronization symbol. This estimate of the offset is used for a rapid synchronization during the starting phase or for resynchronization during a micro-interruption. The method estimates the offset by comparing the frequency domain constellation obtained by transforming the received synchronization symbol using the current sample pointer setting with the frequency domain constellations stored as templates. (A constellation point for a channel is phase and magnitude values in frequency domain for the channel). It chooses the template which is closest to the received constellation and declares the offset corresponding to the chosen template as the estimated offset for the received symbol. The templates are obtained by the following process. First, a time domain signal is obtained by transforming a fixed (transmitted) synchronization symbol comprising of several channels each with a constellation point specified for the channel.