Title:
CONDENSER MODULATOR FOR CONVERTING RIGHT ANGLE COMPONENT MODULATION
Document Type and Number:
Japanese Patent JPS5863256
Kind Code:
A
Abstract:
The moduiator (12) provides a means for simultaneous modulation of two carrier signals (CXR1, CXR2) in quadrature by two input signals (22, 24) in such a way that the gains of the two modulations are exactly the same.
A switched-capacitor modulator (12) is provided having a plurality of input signal sources for quadrature amplitude modulation. The modulator (12) includes a single common switched-capacitor network (14) with multiple switches or multiple switched-capacitor networks for each incoming modulating signal. A switched-capacitor network utilized to form and modulate a carrier signal for shaping the carrier to reduce sidebands of the third and fifth harmonics in the modulated signal is also disclosed.
Inventors:
JIYON EI SHII BINGAMU
Application Number:
JP16244682A
Publication Date:
April 15, 1983
Filing Date:
September 20, 1982
Export Citation:
Assignee:
REIKARU BEIDEIKU CORP
International Classes:
H04L27/20; H03C1/00; H03H19/00; H03K4/02; H04L27/34; H04L27/36; (IPC1-7): H04L27/00; H04L27/22
Domestic Patent References:
| JPS5270739A | 1977-06-13 |
Attorney, Agent or Firm:
Heikichi Odashima