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. 04, 1994
Filed:
Feb. 27, 1991
Yasuo Ohkubo, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
Data having an ID code attached thereto is transferred via a network line. The ID code is detected by an ID code detection circuit and data is received by a data receiving circuit. An ID code detected by the ID code detection circuit and an ID code previously stored in an ID comparing register are compared with each other by a comparator circuit. Predetermined ID codes corresponding to an engine rotation speed and car speed, for example, are stored in the ID comparing register. A masking circuit for masking one or more bits of the ID code is provided in the comparator circuit. The switching state of a switch for controlling the transfer of data received by the data receiving circuit is controlled according to a comparison output of the comparator circuit. When the ID codes are coincident with each other, the switch is turned on, causing data received by the data receiving circuit to be transferred to a CPU. A plurality of electronic instruments can be selected by use of a single ID code by masking at least one bit of the ID code by means of a masking circuit.