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:
Jul. 12, 2011
Filed:
May. 28, 2009
Karl Weber, Altdorf, DE;
Karl Weber, Altdorf, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method for allocation of a buffer memory with three buffers of a module having a processing unit and a bus connection is provided. The module sends or receives data via the bus connection and uses the processing unit to generate data for transmission via the bus connection and process data received via the bus connection. The bus connection and the processing unit function as a producer or consumer in a communication relationship established via the buffer memory. Each buffer assumes one of four statuses—'input area local', 'local', “input area external” and “external”. Either the bus connection or the processing unit attempt to reserve one of the three buffers by a strategy: when one of the three buffers is already allocated, this buffer is used. Otherwise a buffer with the status “input area external” or “input area local” is used and the status “external” or “local” is assigned.