The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 1995
Filed:
Feb. 28, 1994
Atsushi Miyake, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An automatic power control circuit controls the output power of a transmitting RF signal having envelope fluctuations generated by the modulation. The circuit uses a feedback signal which is a difference signal between an envelope provided by detecting the RF output signal, and a reference voltage corresponding to the transmitting power. At this time, fluctuation components included in the envelope and generated by the modulation is removed by the use of a low-pass filter. This circuit secures the sharpness in the leading edge of the burst signal by reducing the time constant of the low-pass filter in the rise time of the burst signal and increasing the time constant of the low-pass filter in the data periods.