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:
Jun. 06, 1978
Filed:
Feb. 15, 1977
Tadashi Takaoka, Ibaraki, JA;
Eiichi Toyota, Katsuta, JA;
Hitachi, Ltd., , JA;
Abstract
A train operation control apparatus includes a memory for prestoring speed instructions in accordance with the travelled distances of a train and a counter which starts to operate upon train's passing through a predetermined point to count input signals representative of a travel speed of the train. A speed instruction is read out of the memory in response to a content of the counter so that the train follows the speed instruction. Before the operation of the counter is started, a maximum count of the counter is preset so that a minimum speed instruction is read out of the memory at the start of operation, and based on the content thereof a fault of the counter is detected so that a brake instruction is issued to the train.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile