Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where David A. Petersen is active.

Publication


Featured researches published by David A. Petersen.


Journal of the Acoustical Society of America | 2011

Method for scalable manufacturing of medical diagnostic ultrasound imaging systems

Robert N. Phelps; David A. Petersen; John C. Lazenby

A plurality of application specific integrated circuit (ASIC) chips with different functions is provided. Each of the ASICs performs one or more functions along an ultrasound data path. The chips include communications protocols or processes for allowing scaling. For example, ASICs for backend processing include data exchange ports for communicating between other ASICs of the same type. As another example, receive beamformer ASICs cascade for beamformation. By providing ASICs implementing many or most of the ultrasound data path functions, with scalability, the same ASICs may be used for different system designs. A family of systems from high end to low-end using the same types of ASICs, but in different configurations, is provided.


Journal of the Acoustical Society of America | 2003

Segmented handheld medical ultrasound system and method

Robert P. Sammamish Hunt; John C. Lazenby; Robert N. Phelps; David A. Petersen; Stephen B. Hooper; Heike Seck; Jerry D. Hopple; Bhavani Duggirala


Archive | 2004

System and method for actively cooling transducer assembly electronics

William J. San Jose Park; Vaughn R. Saratoga Marian; David A. Petersen; Todor Sheljaskow; Mirsaid S. Boloforosh; Worth B. Walters; Sevig Ayter


Journal of the Acoustical Society of America | 2005

Receive circuit for ultrasound imaging

Robert N. Phelps; David A. Petersen; John C. Lazenby; Robert P. Sammamish Hunt


Archive | 2002

Ultrasound transmit pulser with receive interconnection and method of use

Robert N. Phelps; David A. Petersen


Journal of the Acoustical Society of America | 2005

Transmit and receive isolation for ultrasound scanning and methods of use

David A. Petersen; John C. Lazenby; Robert P. Sammamish Hunt; Robert N. Phelps


Archive | 1998

Ultrasound front-end circuit combining the transmitter and automatic transmit/receiver switch

Ralph Oppelt; David A. Petersen


Archive | 2003

Probe based digitizing or compression system and method for medical ultrasound

Robert N. Phelps; John C. Lazenby; David A. Petersen


Journal of the Acoustical Society of America | 2000

Ultrasound transmission method and system for simulating a transmit apodization

Qinglin Ma; John C. Lazenby; Lin Xin Yao; Bruce A. McDermott; David A. Petersen


Archive | 2003

Ultrasound adaptor methods and systems for transducer and system separation

David A. Petersen; Robert N. Phelps; John C. Lazenby

Researchain Logo
Decentralizing Knowledge