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. 19, 1991
Filed:
Dec. 23, 1988
Yuji Watanabe, Kawasaki, JP;
Haruki Toda, Yokohama, JP;
Hiroshi Sahara, Tokyo, JP;
Shigeo Ohshima, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A data transfer circuit is connected between first and second circuits so as to control data transfers therebetween. The data transfer circuit comprises first and second latch circuits for latching data in response to first and second latch control signals, respectively, a first data transfer gate connected between the first circuit and the first latch circuit and responsive to a first gate control signal to make electrical connection or disconnection therebetween, a second transfer gate connected between the first and second data latch circuits and responsive to a second gate control signal to make electrical connection or disconnection therebetween, and a third data transfer gate connected between the second data latch circuit and the second circuit and responsive to a third gate control signal to make electrical connection or disconnection therebetween. After data is transferred from the first circuit to the first data latch circuit, the data can be transferred from the data latch circuit to the second data latch circuit even if the data in the data first circuit disappears. The third data transfer gate can be opened to transfer data from the second data latch circuit to the second circuit.