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:
Oct. 01, 1991
Filed:
Mar. 07, 1989
Toshimasa Ike, Tokyo, JP;
Seiko Instruments Inc., , JP;
Abstract
An electronic data collection system for managing and controlling information in a restaurant comprises a portable data entry device and an information processing apparatus. The portable data entry device receives data entered by an operator and relays the data to the information processing apparatus by wireless bi-directional communication. The wireless bi-directional communication comprises either a radio communication mode or an electromagnetic induction communication mode. The communication between the portable data entry device and the information processing apparatus is normally effected by the radio communication mode. In the event communication errors occur under the influence of various noises during the communication, the electronic data collection system changes from the radio communication mode to the electromagnetic induction communication mode.