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. 15, 1991
Filed:
Oct. 17, 1989
Johannes Heichler, Murrhardt, DE;
ANT Nachrichtentechnik GmbH, Backnang, DE;
Abstract
A bus coupling circuit couples data between a transmitting subscriber and a receiving subscriber using a data transfer bus. Each subscriber includes a bidirectional driver for transmitting and receiving data. Each bidirectional driver includes an apparatus for reintroducing a direct voltage at the bus-sided input of each driver, and a direct voltage splitting device connected between the driver and the bus. Each driver has an input/output port. A hysteresis circuit is connected to each driver and includes a voltage divider disposed between the an input of the driver and a source of supply voltage. The voltage divider has a divider tap to provide a direct supply voltage at the driver, and includes first and second voltage divider resistors, these resistors having respective resistance values R2x and R3x which satisfy the following relationship: ##EQU1## where x represents the sequential number of the respective subscriber, and n is the number of tolerable driver short circuits; whereby the bus is fault tolerant for a plurality n of driver short circuits.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile