Christopher M Hull

US Patent:

7501900, Mar 10, 2009

Filed:

May 31, 2006

Appl. No.:

11/444076

Inventors:

Christopher Hull - Portland OR, US
Russell Fagg - San Diego CA, US
Dandan Li - San Diego CA, US

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H03L 7/085
H03L 7/00
H03L 7/099
H03B 5/10
H03B 5/12
H03J 7/04

US Classification:

331 16, 331 1 A, 331177 R, 331 34, 331179

Abstract:

A novel circuit for obtaining the bandwidth of a phase-locked loop circuit is disclosed. The circuit adjusts a phase of a signal (reference or generated), causing the phase-locked loop circuit to adjust the frequency of its voltage-controlled oscillator as it recovers a phase lock. The circuit times the duration of the recovery stage, from which the loop bandwidth may be obtained. Adjustments to the programmable portions of the phase-locked loop may then be made in accordance with design specifications.

US Patent:

20220200532, Jun 23, 2022

Filed:

Dec 21, 2020

Appl. No.:

17/129483

Inventors:

- Santa Clara CA, US
Stefano Pellerano - Beaverton OR, US
Christopher Hull - Portland OR, US

International Classification:

H03D 7/14
H03D 7/16
H03B 19/14
H03L 7/099

Abstract:

A biasing scheme for a frequency multiplication circuit, and transceiver using LO signals provided by the frequency multiplication circuit are described. A frequency doubler is cascaded with a mixer to provide a mm-wave oscillator signal. The combination provides a frequency triple that of the LO frequency supplied to the frequency doubler from a PLL. A small-sized replica of the frequency doubler is used to determine biasing of transconductance devices of the frequency doubler. A voltage output of the replica is amplified and the difference between the output and a reference voltage is supplied as feedback to the control terminal of the transconductance devices to bias the transconductance devices to near threshold. The biasing is replicated at the frequency doubler to compensate for PVT variations. A PTAT current source tied to the output of the replica regulates an average output current of the frequency multiplication circuit.

US Patent:

20220200642, Jun 23, 2022

Filed:

Dec 23, 2020

Appl. No.:

17/131872

Inventors:

- Santa Clara CA, US
Ritesh A. BHAT - Hillsboro OR, US
Steven CALLENDER - Portland OR, US
Brent R. CARLTON - Portland OR, US
Christopher D. HULL - Portland OR, US
Stefano PELLERANO - Beaverton OR, US
Mustafijur RAHMAN - Hillsboro OR, US
Peter SAGAZIO - Portland OR, US
Woorim SHIN - Portland OR, US

International Classification:

H04B 1/04

Abstract:

Various aspects provide a transceiver and a communication device including the transceiver. In an example, the transceiver includes an amplifier circuit including an amplifier stage with an adjustable degeneration component, the amplifier stage configured to amplify a received input signal with an adjustable gain, an adjustable feedback component coupled to the amplifier stage; and a controller coupled to the amplifier stage and to the adjustable feedback component and configured to adjust the adjustable feedback component based on an adjustment of the adjustable degeneration component.

US Patent:

20220200750, Jun 23, 2022

Filed:

Dec 17, 2020

Appl. No.:

17/124536

Inventors:

- Santa Clara CA, US
Chun C. LEE - Portland OR, US
Stefano PELLERANO - Beaverton OR, US
Christopher D. HULL - Portland OR, US

International Classification:

H04L 5/00
H04W 72/08
H04W 72/04

Abstract:

Various aspects of this disclosure provide a receiver. The receiver may include a down-converter configured to down-convert a received communication signal at a predefined carrier frequency, with a reference signal received from a reference signal generator, and a processor configured to perform a signal quality detection to identify a signal quality metric of the received communication signal at the predefined carrier frequency, and to provide a frequency adjusting signal to the reference signal generator to change the frequency of the reference signal based on the performed signal quality detection to identify the signal quality metric of the received communication signal at the predefined carrier frequency.

US Patent:

20210364595, Nov 25, 2021

Filed:

Aug 10, 2021

Appl. No.:

17/398276

Inventors:

- Santa Clara CA, US
Christopher Hull - Portland OR, US
Stefano Pellerano - Beaverton OR, US

International Classification:

G01S 7/03

Abstract:

Radar circuitry can include an isolator and a mixer. The isolator can isolate a transmission signal path and a reception signal path from each other, and generate a mixing (e.g. oscillation) signal based on a transmission signal. The isolator can be coupled to the mixer such that the drive signal drives the mixer (e.g. serves as the local oscillation signal of the mixer). The mixer mixes a received signal and the drive signal to generate a converted signal (e.g. a down-converted signal). The isolator can be a hybrid transformer or electrically balanced duplexer.

US Patent:

20210126589, Apr 29, 2021

Filed:

Aug 24, 2020

Appl. No.:

17/000473

Inventors:

- Santa Clara CA, US
Yanjie WANG - Hillsboro OR, US
Stefano PELLERANO - Beaverton OR, US
Christopher D. HULL - Portland OR, US

International Classification:

H03F 1/32
H03F 1/02
H03F 1/22
H03F 3/189
H03F 3/45
H03F 3/72
H03F 3/24
H03F 1/56
H03F 3/193
H03F 3/21
H03F 3/68
H04B 1/04
H04L 27/34

Abstract:

A communication device includes a power amplifier that generates power signals according to one or more operating bands of communication data, with the amplitude being driven and generated in output stages of the power amplifier. The final stage can include an output passive network that suppresses suppress an amplitude modulation-to-phase modulation (AM-PM) distortion. During a back-off power mode a bias of a capacitive unit of the output power network component can be adjusted to minimize an overall capacitance variation. A output passive network can further generate a flat-phase response between dual resonances of operation.

US Patent:

20210044318, Feb 11, 2021

Filed:

Jul 17, 2020

Appl. No.:

16/931462

Inventors:

Christopher HULL - Portland OR, US
Stefano PELLERANO - Beaverton OR, US
Woorim SHIN - Portland OR, US
Ka Chun KWOK - Fremont CA, US

International Classification:

H04B 1/48
H03F 1/56
H03F 3/21
H03H 7/38

Abstract:

A transmit receive switch (TRSW) system is disclosed. The system has a transmission line, a transformer based matching network, a shunt switch, an amplifier and circuitry. The transmission line is connected to an antenna port. The transformer based matching network is connected to the transmission line and has a first coil and a second coil, wherein the second coil is connected to the transmission line. The amplifier can be configured as a shunt switch when inactive. The shunt switch, including the amplifier configured as the shunt switch, can be connected to the first coil of the transformer based matching network. The circuitry is configured to cause the shunt switch to be ON during an inactive mode and create a short across the first coil. Combined, the length of transmission line needed to complete the impedance transformation is reduced, thereby lowering the overall insertion loss of the transmit/receive switch.

US Patent:

20200209349, Jul 2, 2020

Filed:

Dec 28, 2018

Appl. No.:

16/235014

Inventors:

- Santa Clara CA, US
Christopher Hull - Portland OR, US
Stefano Pellerano - Beaverton OR, US

International Classification:

G01S 7/03

Abstract:

Radar circuitry can include an isolator and a mixer. The isolator can isolate a transmission signal path and a reception signal path from each other, and generate a mixing (e.g. oscillation) signal based on a transmission signal. The isolator can be coupled to the mixer such that the drive signal drives the mixer (e.g. serves as the local oscillation signal of the mixer). The mixer mixes a received signal and the drive signal to generate a converted signal (e.g. a down-converted signal). The isolator can be a hybrid transformer or electrically balanced duplexer.