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. 27, 1976
Filed:
Jun. 03, 1974
Robert R Podowski, Elmhurst, IL (US);
Zenith Radio Corporation, Chicago, IL (US);
Abstract
A broadcast receiver has a reversible binary counter having its output coupled to a digital-to-analog converter which translates the counter's binary coded output signal to a control voltage and applies it to a voltage controllable circuit means. A local source of clock pulses is selectively coupled to the counter by a pair of operator actuated switches to preferentially alter the counter output signal. The binary coded counter output signals are coupled to a non-volatile memory by read/write means for storage during periods of receiver deactivation and reimposed on the counter during subsequent activation of the receiver. Receiver activation and deactivation transitions are detected by voltage sensing means which are coupled to the read/write means and are responsive to changes in the receiver operating potential. Preset means comprising a non-volatile, non-erasable memory and selector switches permit resetting the counter to a predetermined binary data configuration.