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:
Sep. 29, 2026
Filed:
Jan. 10, 2024
Stmicroelectronics International N.v., Geneva, CH;
Nunzio Spina, Catania, IT;
Alessandro Castorina, Acireale, IT;
Giuseppe Palmisano, S. Giovanni la Punta, IT;
STMicroelectronics International N.V., Geneva, CH;
Abstract
An envelope detector receives a modulated signal and a differential stage coupled to the detector produces a replica modulated signal compared to produce a PWM-modulated signal having on and off times. A first switch is actuated to short-circuit the input to the envelope detector. A second switch is actuated to feed back to a storage capacitor a signal indicative of the difference between inputs to the differential stage. A third switch is actuated to short-circuit an input to the comparator. Logic circuitry activates the switched to implement offset compensation where: the first, second and third switches are actuated in the absence of the PWM-modulated signal during start-up and standby phases; and the first, second and third switches are actuated during off times of the PWM-modulated signal in a working phase alternating with the start-up/standby phases.