Patent Number: 6,529,052

Title: Frequency multiplier based on exclusive-or gate and frequency divider

Abstract: An electronic device which includes a periodic signal generator (12) and a frequency multiplier circuit (14) for multiplying the frequency of the periodic signal. The multiplier circuit is formed on the basis of an EXCLUSIVE-OR gate (20), which receives the periodic signal, and a frequency divider circuit (22) connected between the output and an input of the gate. From this divider circuit it is possible to derive in a very simple way quadrature signals, which makes it feasible to perform a modulation of the type known as "zero demodulation". The multiplier circuit can operate in accordance with CML technology (Current Mode Logic).

Inventors: Wang; Zhenhua (Zurich, CH)

Assignee: Koninklijke Philips Electronics N.V.

International Classification: H03B 21/00 (20060101); H03B 21/02 (20060101); H03B 019/00 ()

Expiration Date: 03/04/2020