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:
Feb. 13, 2007
Filed:
Sep. 13, 2005
Nhan Xuan Bui, Tucson, AZ (US);
Robert Allen Hutchins, Tucson, AZ (US);
Eiji Ogura, Yokohama, JP;
Mark Allan Taylor, Tucson, AZ (US);
Kazuhiro Tsuruta, Sagamihara, JP;
Nhan Xuan Bui, Tucson, AZ (US);
Robert Allen Hutchins, Tucson, AZ (US);
Eiji Ogura, Yokohama, JP;
Mark Allan Taylor, Tucson, AZ (US);
Kazuhiro Tsuruta, Sagamihara, JP;
International Bussiness Machines Corporation, Armonk, NY (US);
Abstract
An apparatus, system, and method are disclosed for the velocity proportional clocking of time base servo tape storage devices. The apparatus, system, and method allow the velocity of time base servo tape storage devices to be adjusted and maintained by adjusting the frequency of a clock. In one embodiment, a velocity command is received and the clock signal frequency is varied in response to the command. A feedback control signal may then be produced to control the velocity of a time base servo device in response to the clock signal frequency, the feedback control signal being used to vary the velocity of a servo motor. In one embodiment, the velocity of the servo motor varies directly proportionate to the clock signal frequency.