Title:
【発明の名称】正弦・余弦振動を作るための方法および回路装置
Document Type and Number:
Japanese Patent JP2001508264
Kind Code:
A
Abstract:
With reference to a method and circuit arrangements, it is described how, using the Chebyshev polynomials, frequency multipliers as well as sine/cosine generators can be constructed in a general-purpose manner, i.e., circuits that are frequently required in telecommunications engineering. A number of Chebyshev modules and various multipliers and adders are realized in an integrated circuit which then carries out a wide range of different functions depending on the external wiring. Disclosed as further functions which can easily be technically realized with such a chip are the synthesis of any desired functions by representing the function by means of a Chebyshev series and the use of Tn(x) as an amplifier with the amplification factor n for sin(nx)≈nx, and odd n.
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Inventors:
Huber, Claus
Application Number:
JP53349898A
Publication Date:
June 19, 2001
Filing Date:
December 17, 1997
Export Citation:
Assignee:
Deutsche Telecom AG
International Classes:
G06G7/22; H03B28/00; G06F1/02; H03B19/00; (IPC1-7): H03B28/00; G06F1/02; G06G7/22
Attorney, Agent or Firm:
Masao Okabe (11 others)