CA2308085A1 - Phase angle data-trigonometric function value converter circuit and composite diversity receiver - Google Patents
Phase angle data-trigonometric function value converter circuit and composite diversity receiver Download PDFInfo
- Publication number
- CA2308085A1 CA2308085A1 CA002308085A CA2308085A CA2308085A1 CA 2308085 A1 CA2308085 A1 CA 2308085A1 CA 002308085 A CA002308085 A CA 002308085A CA 2308085 A CA2308085 A CA 2308085A CA 2308085 A1 CA2308085 A1 CA 2308085A1
- Authority
- CA
- Canada
- Prior art keywords
- angle data
- sine
- cosine
- trigonometric function
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title 1
- 230000006870 function Effects 0.000 abstract 2
- 229910002056 binary alloy Inorganic materials 0.000 abstract 1
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radio Transmission System (AREA)
Abstract
Disclosed is a phase angle data-trigonometric function value converter circuit for computing a trigonometric function value corresponding to an angle that an angle of 360 degrees is divided into n equal parts, where n is an integer, which has: means for converting the integer n into angle data represented by binary system; a sine value data memory which stores sine values corresponding to the angle data from zero degree to 90 degrees and outputs sine values corresponding to the angle data to be input thereto; a cosine value data memory which stores cosine values corresponding to the angle data from zero degree to 90 degrees and outputs cosine values corresponding to the angle data to be input thereto; a selector to which the sine values output from the sine value data memory and the cosine values output from the cosine value memory are input and which selects the sine values or the cosine values according to the angle data and outputs them; and means for adding a polarity sign to the sine values or cosine values output from the selector according to the angle data.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8-186080 | 1996-07-16 | ||
| JP8186080A JPH1032531A (en) | 1996-07-16 | 1996-07-16 | Phase angle data and trigonometric function conversion circuit, and synthesis diversity receiver |
| CA002210603A CA2210603C (en) | 1996-07-16 | 1997-07-16 | Phase angle data-trigonometric function value converter circuit and composite diversity receiver |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002210603A Division CA2210603C (en) | 1996-07-16 | 1997-07-16 | Phase angle data-trigonometric function value converter circuit and composite diversity receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2308085A1 true CA2308085A1 (en) | 1998-01-16 |
| CA2308085C CA2308085C (en) | 2002-08-20 |
Family
ID=25679488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002308085A Expired - Fee Related CA2308085C (en) | 1996-07-16 | 1997-07-16 | Phase angle data-trigonometric function value converter circuit and composite diversity receiver |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2308085C (en) |
-
1997
- 1997-07-16 CA CA002308085A patent/CA2308085C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2308085C (en) | 2002-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |