DR. DOROTHY A, SHANNON, PH.D.
Audiology at Whitworth Way, Ellicott, MD
License number
Maryland 018
Category
Speech Language Pathology
Type
Audiologist
Address
Address
9936 Whitworth Way, Ellicott, MD 21042
Phone
(410) 461-0887
Personal information
See more information about DOROTHY A, SHANNON at radaris.comName
Address
Phone
9936 Whitworth Way, Ellicott City, MD 21042
7719 Orange Tree Ct, Capitol Heights, MD 20743
6221 Commons Rd, Rosedale, MD 21237
408 Washburn Ave, Brooklyn, MD 21225
1811 Caroline St, Baltimore, MD 21213
Professional information
See more information about DOROTHY A, SHANNON at trustoria.com
Dr. Dorothy A Shannon, Ellicott City MD - PHD
Dr. Dorothy A Shannon, Ellicott City MD - PHD
Specialties:
Audiology
Address:
9936 Whitworth Way, Ellicott City 21042
(410) 461-0887 (Phone)
(410) 461-0887 (Phone)
Languages:
English
Ultrasonic Frequency Expansion Processor
Ultrasonic Frequency Expansion Processor
US Patent:
5285499, Feb 8, 1994
Filed:
Apr 27, 1993
Appl. No.:
8/052986
Inventors:
Dorothy A. Shannon - Ellicott City MD
John P. King - Ellicott City MD
Joseph T. DeWitte - Laurel MD
James D. Orndorff - Baltimore MD
John P. King - Ellicott City MD
Joseph T. DeWitte - Laurel MD
James D. Orndorff - Baltimore MD
Assignee:
Signal Science, Inc. - Santa Clara CA
International Classification:
H04R 2500, A61B 704
US Classification:
381 68
Abstract:
A method and apparatus for ultrasonic frequency expansion is characterized by expanding audiometric frequencies before translation into the ultrasonic range. The audiometric signals are first expanded in time by a factor of 1/. beta. where. beta. <1 while generally maintaining the frequency content of the audiometric signals. Next the frequency of the signals is expanded by a factor 1/. beta. while compressing the time scale to that of the original signal. The frequency expanded signal is processed via a single-sideband upconverter to translate the frequency expanded signal into a single sideband signal in the ultrasonic range.