Terence R Johnson

US Patent:

7008382, Mar 7, 2006

Filed:

Nov 20, 2002

Appl. No.:

10/300512

Inventors:

Leland Ray Adams - Ansonia CT, US
Frederick Timothy Karl - Newton CT, US
Hanspeter Robert Bayer - Meriden CT, US
Terence Clifford Johnson - Bloomington IN, US

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 10/00

US Classification:

600564

Abstract:

A medical instrument includes a housing, a stylet having a portion in the housing, a cannula coaxially receiving the stylet and having a portion in the housing, and a member slidably coupled to the housing. The stylet and the cannula are movable between an extended position and a retracted position. The member is configured with primary and secondary bars to move the stylet and the cannula from their extended positions to their retracted positions.

US Patent:

7224711, May 29, 2007

Filed:

Jul 30, 2004

Appl. No.:

10/902021

Inventors:

Terence L. Johnson - Fairfax VA, US
John W. McCorkle - Vienna VA, US
Phuong T. Huynh - Annandale VA, US

Assignee:

Freescale Semiconductor Inc. - Austin TX

International Classification:

H04B 1/69

US Classification:

375130

Abstract:

A method and an apparatus are provided for mitigating spectral lines in a wireless signal. First a code word is generated that is made up of a plurality of binary or ternary encoded pulses. Then a plurality of code-word-modulated wavelets are generated in response to the code word. These wavelets can be Gaussian monopulses, repeated cycles of a sine wave, or other shaped impulse signals. The plurality of code-word-modulated wavelets are then modulated with a bit of transmit data to form a plurality of data-modulated wavelets. This modulation serves to whiten the signals since the transmit data is effectively random. Finally, the plurality of data-modulated wavelets are transmitted to a remote device.

US Patent:

7228120, Jun 5, 2007

Filed:

Nov 18, 2004

Appl. No.:

10/990400

Inventors:

Terence L. Johnson - Fairfax VA, US
Nitin Sharma - Centreville VA, US
Ryan W. Lobo - Arlington TX, US

Assignee:

Freescale Semiconductor, Inc. - Austin TX

International Classification:

H04B 1/10

US Classification:

455296, 455283, 455284, 455295, 455301, 455303, 455305, 375317, 375319

Abstract:

A method is provided for reducing a DC bias in a receiver. This method includes isolating a second circuit portion from a first circuit portion () and determining a second DC bias correction value for the second circuit portion that will eliminate a second DC bias at the isolated second circuit portion (). The second circuit portion is then connected to the first circuit portion () and a bias-maximizing code word is generated at the first circuitry (). A first DC bias correction value is then determined that will eliminate a first DC bias at the first circuit portion (). The bias-maximizing code word is formed such that: a first integrated value of a first half of the bias-maximizing code word has a positive value, and a second integrated value of a second half of the bias-maximizing code word over half of the code word length has a negative value.

US Patent:

7449000, Nov 11, 2008

Filed:

Jan 4, 2006

Appl. No.:

11/325837

Inventors:

Leland Ray Adams - Ansonia CT, US
Frederick Timothy Karl - Newton CT, US
Hanspeter Robert Bayer - Meriden CT, US
Terence Clifford Johnson - Bloomington IN, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61B 10/00

US Classification:

600564

Abstract:

A medical instrument includes a housing, a stylet having a portion in the housing, a cannula coaxially receiving the stylet and having a portion in the housing, and a member slidably coupled to the housing. The stylet and the cannula are movable between an extended position and a retracted position. The member is configured with first and second bars to move the stylet and the cannula from their extended positions to their retracted positions.

US Patent:

7508896, Mar 24, 2009

Filed:

Dec 28, 2004

Appl. No.:

11/022883

Inventors:

Terence L. Johnson - Fairfax VA, US
Timothy R. Miller - Arlington VA, US

Assignee:

Freescale Semiconductor, Inc. - Austin TX

International Classification:

H03D 3/24

US Classification:

375376

Abstract:

A tracking circuit () is provided for controlling a locally-generated clock. A receive channel () in the tracking circuit receives an incoming signal and a local clock, generates a local signal based on the local clock, and compares the local signal and the incoming signal to generate a data signal and an unfiltered phase error signal. A loop filter () filters the unfiltered phase error signal to provide a filtered phase error signal. A numerically controlled oscillator () generates a correction clock based on the filtered phase error signal. And a filter control circuit () provides one or more filter control signals to control operational parameters of the loop filter. The correction clock is provided to the receive channel to modify at least one of the phase and frequency of the local clock. In addition, a sample switch () may also be provided to sample the unfiltered phase error signal.

US Patent:

7532687, May 12, 2009

Filed:

Jan 18, 2005

Appl. No.:

11/036132

Inventors:

Terence L. Johnson - Fairfax VA, US

Assignee:

Freescale Semiconductor, Inc. - Austin TX

International Classification:

H04L 27/08

US Classification:

375345, 375130, 348528, 37938803, 379395

Abstract:

A method () and an apparatus () are presented for processing a signal in a receiver in accordance with Ultra Wideband (UWB) protocol. The received signal is acquired during a first preamble portion () of a data frame associated with the UWB protocol. During acquisition a first Automatic Gain Control (AGC) operation () is performed associated with a noise component of the signal. A second AGC operation () associated with a pulse component of the signal is performed after the acquiring the signal during a second preamble portion ().

US Patent:

8088080, Jan 3, 2012

Filed:

Nov 6, 2008

Appl. No.:

12/266452

Inventors:

Leland Ray Adams - Ansonia CT, US
Frederick Timothy Karl - Newtown CT, US
Terence Clifford Johnson - Bloomington IN, US
Hanspeter Robert Bayer - Meriden CT, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61B 10/00

US Classification:

600564

Abstract:

A medical instrument includes a housing, a stylet having a portion in the housing, a cannula coaxially receiving the stylet and having a portion in the housing, and a member slidably coupled to the housing. The stylet and the cannula are movable between an extended position and a retracted position. The member is configured with first and second bars to move the stylet and the cannula from their extended positions to their retracted positions.

US Patent:

8562543, Oct 22, 2013

Filed:

Dec 6, 2011

Appl. No.:

13/312151

Inventors:

Leland Ray Adams - Ansonia CT, US
Frederick Timothy Karl - Newtown CT, US
Terence Clifford Johnson - Bloomington IN, US
Hanspeter Robert Bayer - Meriden CT, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61B 10/00

US Classification:

600564

Abstract:

A medical instrument includes a housing, a stylet having a portion in the housing, a cannula coaxially receiving the stylet and having a portion in the housing, and a member slidably coupled to the housing. The stylet and the cannula are movable between an extended position and a retracted position. The member is configured with first and second bars to move the stylet and the cannula from their extended positions to their retracted positions.