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:
May. 27, 1980
Filed:
Nov. 08, 1978
Applicant:
Inventor:
Edward J Shortridge, Coral Gables, FL (US);
Assignee:
Shakespeare Marine Electronics, Inc., Miami, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ; G01S / ;
U.S. Cl.
CPC ...
367115 ; 367108 ; 367 97 ; 346 / ; 346 / ;
Abstract
A microprocessor-controlled depth recorder wherein strip chart recording is effected by use of a thermal printing head and wherein the microprocessor is programmed for the selective printing of any one of a plurality of depth ranges and the optional simultaneous printing of chart scale data and alphanumeric indicia along with echo soundings. For high resolution printing, the thermal printing head comprises 110 resistive elements, multiplexing being utilized to reduce the resistive element driving circuits from 110 to 21 by dividing the 110 resistive elements into 10 groups of 11 dots each.