Daniel P Mccarthy

US Patent:

7403071, Jul 22, 2008

Filed:

Mar 14, 2006

Appl. No.:

11/374870

Inventors:

Neal W. Hollenbeck - Palatine IL, US
Lawrence E. Connell - Naperville IL, US
Daniel P. McCarthy - Elk Grove Village IL, US

Assignee:

Freescale Semiconductor, Inc. - Austin TX

International Classification:

H03F 3/45

US Classification:

330254

Abstract:

An amplifier, tuner, and method of amplification are provided. The amplifier has a pair of transistors. Each transistor has a control terminal and an output terminal disposed between the transistor and a power supply input. A first network is connected between each power supply input and output terminal. The first network contains a first resistor and a first switch connected in parallel with the first resistor. A second network is connected between the transistors. The second network contains a first and second combination. Each of the first and second combinations contains a second resistor and a second switch connected in parallel with the second resistor. The first and second combinations are connected by a third switch.

US Patent:

7505748, Mar 17, 2009

Filed:

Sep 28, 2005

Appl. No.:

11/238657

Inventors:

Daniel P. McCarthy - Elk Grove Village IL, US
Lawrence E. Connell - Naperville IL, US
Neal W. Hollenbeck - Palatine IL, US

Assignee:

Freescale Semicondductor, Inc. - Austin

International Classification:

H04B 7/00

US Classification:

4552491, 455134, 455136, 455138, 4551942, 4551832, 333 81 R

Abstract:

A variable attenuator and method of attenuating a signal is presented. The variable attenuator contains an input that receives an input signal to be attenuated. A voltage divider between a resistor and parallel MOSFETs provides the attenuated input signal. The MOSFETs have different sizes and have gates that are connected to a control signal through different resistances such that the larger the MOSFET, the larger the resistance. The control signal is dependent on the output of the attenuator. The arrangement extends the linearity of the attenuation over a wide voltage range of the control signal and decreases the intermodulation distortion of the attenuator.

US Patent:

7583945, Sep 1, 2009

Filed:

Jan 10, 2006

Appl. No.:

11/329752

Inventors:

Daniel P. McCarthy - Elk Grove Village IL, US
Lawrence E. Connell - Naperville IL, US

Assignee:

Freescale Semiconductor, Inc. - Austin TX

International Classification:

H04B 1/06

US Classification:

4552491, 455254

Abstract:

An amplifier and method of amplifying a signal is presented. The amplifier contains a fixed gain stage, a digitally controllable gain stage, and a continuously variable attenuator connected between the fixed and controllable gain stages. The attenuator and controllable gain stage are controllable such that the gain of the controllable gain stage is decreased when the attenuation of the attenuator reaches a predetermined maximum value and the attenuation of the attenuator is reduced thereafter. The output power level of the amplifier remains constant.

US Patent:

8131241, Mar 6, 2012

Filed:

Feb 5, 2009

Appl. No.:

12/366336

Inventors:

Daniel P. McCarthy - Elk Grove Village IL, US
Lawrence E. Connell - Naperville IL, US
Neal W. Hollenbeck - Palatine IL, US

Assignee:

Freescale Semiconductor, Inc. - Austin TX

International Classification:

H04B 1/06
H04B 7/00
H03L 5/00

US Classification:

4552491, 4552342, 327308

Abstract:

A variable attenuator and method of attenuating a signal is presented. The variable attenuator contains an input that receives an input signal to be attenuated. A voltage divider between a resistor and parallel MOSFETs provides the attenuated input signal. The MOSFETs have different sizes and have gates that are connected to a control signal through different resistances such that the larger the MOSFET, the larger the resistance. The control signal is dependent on the output of the attenuator. The arrangement extends the linearity of the attenuation over a wide voltage range of the control signal and decreases the intermodulation distortion of the attenuator.

US Patent:

20130237968, Sep 12, 2013

Filed:

Sep 10, 2012

Appl. No.:

13/608002

Inventors:

Darin Schaeffer - Bloomington IN, US
Pamela Ridgley - Bloomington IN, US
Daniel McCarthy - Chicago IL, US

Assignee:

COOK MEDICAL TECHNOLOGIES LLC - Bloomington IN

International Classification:

A61B 18/26
A61B 17/22

US Classification:

606 25, 606127

Abstract:

Various medical devices and methods are described herein. For example, various detachable control handle configurations for inclusion with a medical device are described. In another example, various probe configurations are described herein. Furthermore, various methods of treatment using a control handle are described.

US Patent:

20140031810, Jan 30, 2014

Filed:

Jul 30, 2013

Appl. No.:

13/954265

Inventors:

Daniel P. McCarthy - Chicago IL, US
Tyler R. Wanke - Chicago IL, US
Brian J. Robillard - Chicago IL, US

International Classification:

A61B 18/18

US Classification:

606 33

Abstract:

A probe for ablating tissue of a body cavity includes a shaft, an inflatable balloon connected to the shaft, and an electrode structure on or surrounding the balloon. The balloon expands within the body cavity to place the electrode structure in contact with the tissues in the body cavity. Additional electrodes, which are housed within the balloon during insertion into the cavity, can be extended outwardly from the balloon to penetrate the tissues in the body cavity. The electrode structure and the additional electrodes are adapted to transmit electrical energy to tissue of the body cavity in order to ablate the tissues up to a predetermined depth.

US Patent:

20170189043, Jul 6, 2017

Filed:

Mar 20, 2017

Appl. No.:

15/463143

Inventors:

- Bloomington IN, US
Pamela Ridgley - Bloomington IN, US
Daniel McCarthy - Chicago IL, US

Assignee:

Cook Medical Technologies LLC - Bloomington IN

International Classification:

A61B 17/22
A61B 17/34
A61B 18/26

Abstract:

Various medical devices and methods are described herein. For example, various detachable control handle configurations for inclusion with a medical device are described. In another example, various probe configurations are described herein. Furthermore, various methods of treatment using a control handle are described.

US Patent:

20140361821, Dec 11, 2014

Filed:

Jul 3, 2013

Appl. No.:

13/934306

Inventors:

- Plano TX, US
Daniel P. McCarthy - Elk Grove Village IL, US
Brian T. Creed - Batavia IL, US
Kent Jaeger - Cary IL, US

International Classification:

H03K 3/012

US Classification:

327218

Abstract:

An apparatus comprising a latch comprising a differential inverter configured to receive a differential input signal and generate a differential output signal, a pair of cross-coupled inverters coupled to the differential inverter, and a first clock switch configured to couple the differential inverter to a voltage source, a second clock switch configured to couple the differential inverter to a ground, wherein the first clock switch and the second clock switch are configured to receive a differential clock signal, and wherein the first clock switch and the second clock switch are both open or both closed depending on the differential clock signal, a second latch, wherein the first latch and the second latch are configured as a frequency divider, and a logic circuit coupled to each latch, wherein the logic circuits are configured to generate both an in-phase reference output signal and a quadrature output signal.