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:
Dec. 19, 1995
Filed:
Jul. 14, 1993
David J Schanin, San Carlos, CA (US);
Richard R Billig, Los Gatos, CA (US);
Bayview Technology Group, Inc., San Carlos, CA (US);
Abstract
A power conservation system (PCS) includes a data handler, a controller and a power switch. The data handler is located between a host network and a network printer, while the power switch is between an AC power source and the printer's power input. The PCS can thus shut down the printer during periods when no data is being sent to the printer. The PCS monitors data to and from the printer, allowing it to track the printer's state and to capture its network identification. State tracking permits the PCS to emulate the printer when it is down and when it is booting. Additionally, the information stored in a state memory of the data handler can permit the printer's last ready state to be reconstructed after it turns on and boots to a ready state. In some cases, the data handler can answer network requests without turning on the printer. Thus, the PCS provides for effective power conservation while remaining invisible to a user.