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:
Mar. 15, 1988
Filed:
Jul. 03, 1986
Veikko R Saari, Spring Lake Heights, NJ (US);
American Telephone and Telegraph Company, AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
An automatic cable equalizer (10) is implemented in CMOS technology with a reduced requirement for off-chip components. A continuously-variable gain control resistor (28) of an AGC circuit (12) in a gain section and two additional continuously-variable gain control resistors (76, 82) in a shaping section (16) of the equalizer are driven by monotonically related control voltages (V.sub.H1, V.sub.H2, V.sub.L1, V.sub.L2) which are derived from a single feedback loop section (16) by the use of an inverter (102) and a pair of inverters with voltage offset (104, 105). An arrangement is disclosed for realizing a detector (96) and a filter (98) of the gain control feedback section. Another arrangement (134) is disclosed for realizing the inverter (102) and the inverters with voltage offset (104, 105). A third arrangement (154) is disclosed for realizing gain control resistor networks which include the gain control resistors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile