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:
Jan. 27, 1998
Filed:
Jun. 06, 1995
Yumi Sakamoto, Tatsuno-machi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An electronic clock for indicating a time including a source oscillator having a predetermined frequency, a frequency divider circuit for dividing down the frequency of the source oscillator, an input device for generating a continuous input signal when actuated, an input control circuit for detecting the input signal from the input device, an input time counting circuit for counting a period of time from the clock signal during which the input control circuit detects a continuous input signal from the input device, an input time detecting circuit for detecting when the period of time counted by the input time counting circuit equals at least one predetermined value, and a setting increment/decrement control circuit to establish successive predetermined periods of time determined by at least one predetermined value, the rate at which the set time is incremented or decremented is varied in each predetermined period of time by changing a value of a unit of time to be added to or subtracted from the set time.