Utku Seckin

US Patent:

20130287076, Oct 31, 2013

Filed:

Jun 29, 2012

Appl. No.:

13/539175

Inventors:

Ali Afsahi - San Diego CA, US
Utku Seckin - La Jolla CA, US
Colin Fraser - Mountain View CA, US
Navid Lashkarian - Pleasanton CA, US
Konrad Kratochwil - Sunnyvale CA, US
Arya Reza Behzad - Poway CA, US
Dengwei Fu - Los Altos CA, US

Assignee:

BROADCOM CORPORATION - Irvine CA

International Classification:

H04B 15/00
H04L 25/49

US Classification:

375221, 375296

Abstract:

Communication processing paths include distortions, such as DC offset in the baseband analog path, local oscillator feed-through distortion, and nonlinearity of gm's and power amplifiers which are calibrated for, separately or in combination. The cascaded DC offset and nonlinear distortions are modeled separately or in combination using even-and-odd order polynomials. A loopback path from the output of one or more distortion causing devices passes through a measurement and calculation module. The calculation module calculates predistortion polynomial's coefficients which will be stored in a look-up table to be used by a baseband predistorter to calibrate the path. The look-up table is stored locally or remotely.

US Patent:

20130288612, Oct 31, 2013

Filed:

Jun 27, 2012

Appl. No.:

13/534775

Inventors:

Ali Afsahi - San Diego CA, US
Utku Seckin - La Jolla CA, US

Assignee:

BROADCOM CORPORATION - Irvine CA

International Classification:

H04B 1/38

US Classification:

455 73

Abstract:

A communications transceiver includes a shared multi-band mixer. Various configurations of the shared multi-band mixer include using suitable hardware/software in the form of circuitry, logic gates, and/or code functions to combine multi-band processing of RF signal conversion within a single shared mixer. Various configurations include separate or shared tuning and/or amplification of up-converted (mixed) multi-band communication bands. The communications transceiver processes each band separately within the single shared mixer.

US Patent:

20130109326, May 2, 2013

Filed:

Dec 18, 2011

Appl. No.:

13/329298

Inventors:

Utku Seckin - La Jolla CA, US
Yu-Wei Lin - Irvine CA, US
Chungyeol Paul Lee - San Diego CA, US

Assignee:

BROADCOM CORPORATION - Irvine CA

International Classification:

H04B 1/38

US Classification:

455 73

Abstract:

A radio frequency (RF) transceiver includes an RF receiver having an RF receiver path that processes a received signal to generate inbound data, the receiver path having an RF front-end. A power amplifier calibration module generates power amplifier calibration signals in a calibration mode of operation, and generates power amplifier pre-distortion parameters in response to a calibration feedback signal. An RF transmitter processes output data to generate a transmit signal based on the power amplifier pre-distortion parameters in a transmit mode of operation and processes the power amplifier calibration signals to generate an amplified calibration output in the calibration mode of operation. A power amplifier calibration feedback path generates the calibration feedback signal, separate from the RF front-end, in response to the amplified calibration output.

US Patent:

20220321058, Oct 6, 2022

Filed:

Jun 21, 2022

Appl. No.:

17/845666

Inventors:

- Cupertino CA, US
Utku Seckin - San Jose CA, US

International Classification:

H03D 7/14
H04B 15/00
H03B 5/12
H04B 1/10

Abstract:

An electronic device may include wireless circuitry with a baseband processor, a transceiver, a front-end module, and an antenna. The transceiver may include mixer circuitry. The mixer circuitry may include switches controlled by oscillator signals. The mixer circuitry may also include oscillator phase noise cancelling capacitors controlled by inverted oscillator signals. Operated in this way, the mixer circuitry exhibits improved noise figure performance.

US Patent:

20230082519, Mar 16, 2023

Filed:

May 23, 2022

Appl. No.:

17/750909

Inventors:

- Cupertino CA, US
Simone Gambini - San Francisco CA, US
Utku Seckin - San Jose CA, US

International Classification:

H03F 3/195
H04B 1/18
H03F 1/56

Abstract:

An electronic device may include wireless circuitry with processor circuitry, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as low noise amplifier circuitry for amplifying received radio-frequency signals. The amplifier circuitry may include an amplifier having an input and an output, an adjustable load component coupled to the input, and an adjustable feedback component coupled across the input and output. A control circuit may simultaneously adjust the load and feedback components to tune the gain of the amplifier circuitry while maintaining the input resistance at a desired target level. The load and feedback components can be the same or different types of adjustable passive components.

US Patent:

20230084706, Mar 16, 2023

Filed:

Sep 19, 2022

Appl. No.:

17/947739

Inventors:

- Cupertino CA, US
Simone Gambini - San Francisco CA, US
Utku Seckin - San Jose CA, US

International Classification:

H03F 3/195
H04B 1/18
H03F 1/56

Abstract:

An electronic device may include wireless circuitry with processor circuitry, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as low noise amplifier circuitry for amplifying received radio-frequency signals. The amplifier circuitry may include an amplifier having an input and an output, an adjustable load component coupled to the input, and an adjustable feedback component coupled across the input and output. A control circuit may simultaneously adjust the load and feedback components to tune the gain of the amplifier circuitry while maintaining the input resistance at a desired target level. The load and feedback components can be the same or different types of adjustable passive components.

US Patent:

20210096217, Apr 1, 2021

Filed:

Sep 26, 2019

Appl. No.:

16/583522

Inventors:

- Cupertino CA, US
Chunshu Li - San Jose CA, US
Sujeet Milind Patole - Cupertino CA, US
Utku Seckin - Santa Clara CA, US

International Classification:

G01S 7/42
G01S 13/30
G01S 13/12

Abstract:

During operation, a first radar transmitter in an electronic device may provide, via a switch, a first set of electrical signals (such as pulses) during a first time interval to a transmission path, which may result in transmitting of the first wireless signals by an antenna. Then, a second radar transmitter may provide, via the switch, a second set of electrical signals (such as pulses) during a second time interval to the transmission path, which may result in transmitting of the second wireless signals by the antenna. Moreover, N radar receivers in the electronic device may receive first wireless-return signals corresponding to the first set of wireless signals and second wireless-return signals corresponding to the second set of wireless signals. These wireless-return signals may be combined to create a virtual array MIMO radar having an antenna aperture size of 2N.

US Patent:

20210064380, Mar 4, 2021

Filed:

Aug 30, 2019

Appl. No.:

16/557357

Inventors:

- Cupertino CA, US
Robert G. Lorenz - Menlo Park CA, US
Joachim S. Hammerschmidt - Mountain View CA, US
Utku Seckin - Santa Clara CA, US

International Classification:

G06F 9/38
G06F 9/30
G06F 1/08
G06F 17/16

Abstract:

A digital filter according to the disclosure includes a processing circuit having a memory and a number of parallel processing circuits. The parallel processing circuits perform a convolution operations based on input data and function data that is accessed from the memory. The filter further includes a serializer for serializing data that is received from the processing circuits. A clock generator circuit provides a first clock signal to the processing circuit and a second clock signal to the serializer. The frequency of the second clock signal is greater than that of the first clock signal.