Title: Switching arrangement for the transformation of digital angles into analog sine-and/or cosine values

Abstract: A switching arrangement for generating sine and/or cosine function analog outputs in response to input digitally coded angle values where a correspondingly coded digital to analog converter is compensated by means of a correction circuit comprising a resistance network controlled by switches responsive to the input angle. Preferably the correction circuit is interposed between a constant voltage source and the converter so that the reference voltage supplied to the converter is precompensated to achieve sine and cosine output values of a desired precision.

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Inventors: Knier, Hans Josef (Penzberg, DT)

Application Number: 528941
Filing Date: 1974-12-02
Publication_date: 1976-08-10
Assignee: Siemens Aktiengesellschaft (Berlin & Munich, DT)
Primary Class(es): 341/115
Other Classes:
US Patent Ref:

3241133	Mar, 1966	Herzl	340/347.
3277464	Oct, 1966	Naydan	340/347.
3675234	Jul, 1972	Metz	340/347.
3728719	Apr, 1973	Fish	340/347.
3831168	Aug, 1974	Gronner	340/347.

Other Refs:
Primary Examiner: Miller, Charles D.
Assistant Examiner:
Attorney: Hill, Gross, Simpson, Van Santen, Steadman, Chiara & Simpson