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:
Jul. 10, 1990
Filed:
May. 22, 1989
Danny R Taylor, Groton, NY (US);
Databook, Inc., Ithaca, NY (US);
Abstract
An apparatus and method are provided for indicating when it is safe and unsafe to insert a memory cartridge into and remove a memory cartridge from a cartridge receiving device. In one embodiment, the cartridge receiving device includes at least one buffer for buffering information signals to be supplied to the memory cartridge althrough such buffer need not necessarily be located within said cartridge receiving device. The apparatus includes an indicator which is caused to assume a first state to indicate to a user that it is unsafe to insert the memory cartridge into or remove the memory cartridge from the receiving device when at least one of the two following conditions occurs: (1) an attempt is being made to write data to or read data from the memory cartridge, (2) at least one buffer is enabled at the same time the memory cartridge is not present in the receiving device.