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:
Apr. 15, 1997
Filed:
Dec. 04, 1995
Alcatel Sel Aktiengesellschaft, Stuttgart, DE;
Abstract
A frame-structured bus system, particularly for a local operation network for automotive applications, is disclosed in which a plurality of bus stations share a data bus, and in which one of the bus stations generates a sequence of data frames of constant bit length. Each data frame includes an isochronous frame module and an asynchronous frame module, and the division of each data frame into the isochronous and asynchronous frame modules is dynamically variable. The message transmitted by a station is passed through a central star coupler to all stations. A frame clock is generated by a frame clock generator and sent to the central star coupler, with the time sequence of the data frames of the frame clock defining a reference frame clock, and the other stations of the local operation network determining an individual frame transmit clock, such that the respective message transmitted by a particular station, taking into account the propagation delay to the central star coupler, arrives at the central star coupler at that instant relative to the reference frame clock at which this message has to be inserted into the data frame present in the central star coupler.