BICH NGAN NGUYEN
Occupational Therapy at Marten Ave, San Jose, CA
License number
California 13146
Category
Restorative Service Providers
Type
Occupational Therapist
Address
Address
3256 Marten Ave, San Jose, CA 95148
Phone
(408) 274-3916
Personal information
See more information about BICH NGAN NGUYEN at radaris.comName
Address
Phone
497 Phoenix Dr APT 1, Campbell, CA 95008
4942 Collis Ave, South Pasadena, CA 91030
4869 Bucknall Rd, San Jose, CA 95130
487 Broderick Dr, San Jose, CA 95111
5011 Gazania Dr, San Jose, CA 95111
Professional information
Direct Frequency Synthesizer Using Powers Of Two Synthesis Techniques
US Patent:
4878027, Oct 31, 1989
Filed:
Aug 3, 1987
Appl. No.:
7/081207
Inventors:
Stuart L. Carp - Menlo Park CA
Howard L. Swain - Palo Alto CA
Bich N. Nguyen - San Jose CA
Howard L. Swain - Palo Alto CA
Bich N. Nguyen - San Jose CA
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
H03B 1900, H03L 718
US Classification:
328 15
Abstract:
A fast switching broadband signal synthesizer method and structure are provided which not only has the ability to change frequency and amplitude quickly, but with a minimal dwell time required before switching can again take place. A signal translator can also be constructed in accordance with this invention in order to convert the output frequency of a companion signal source to any desired frequency while retaining the fast switching speed and switching rate of the signal synthesizer. Amplitude, phase, and frequency modulation of the companion signal are preserved during the translation process. A direct frequency synthesizer is provided wherein internal signals which are combined to generate any output frequency are derived from a single fixed frequency oscillator. By utilizing a single reference frequency oscillator in accordance with this invention, the amount of circuitry required to construct a direct frequency synthesizer is greatly reduced. Because all internal signals are derived from one reference frequency oscillator, the close-in-phase noise of the internal signals are correlated, thus providing an output signal having low phase noise.
Multiple Variable Compensation For Transducers
US Patent:
5247467, Sep 21, 1993
Filed:
Aug 16, 1989
Appl. No.:
7/394617
Inventors:
Bich Nguyen - San Jose CA
John F. Schipper - Palo Alto CA
John F. Schipper - Palo Alto CA
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G06F 1556, G06F 1531
US Classification:
36457102
Abstract:
Method and apparatus for calibration of sensors and transducers that (a) takes account of the fact that the output variable value may behave differently as a function of the input variable value in different regions of the input variable value and (b) takes account of variation of the output variable value with changes in a plurality of supplemental variables, for a fixed value of the input variable. A discrete set of reference values of each supplemental variable is chosen, and the representation of output variable value as a function of input variable value is determined for each of the set of reference values of the supplemental variables. The representation is then extended to arbitrary values of the supplemental variables by linear or quadratic interpolation.