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. 25, 2013
Filed:
May. 28, 2012
Jozef Laurentius Wilhelmus Kessels, Eindhoven, NL;
Ivan Andrejic, Horgen, CH;
Jozef Laurentius Wilhelmus Kessels, Eindhoven, NL;
Ivan Andrejic, Horgen, CH;
Callahan Cellular L.L.C., Wilmington, DE (US);
Abstract
A data processing apparatus contains several processing circuits each operating under control of its own periodic clock signal, so that the clock signals may have different frequencies and/or can be autonomous. The several processing circuits each have an output for outputting memory access requests, which remain at the output for a validity duration interval defined by the clock signal of the particular processor. A multiplexing circuit multiplexes the access requests to a memory. The memory needs a minimum memory repetition period before it can accept an access request following acceptance of a preceding access request. The clock periods of the processing circuits are longer than the minimum memory repetition period. A timing circuit selects acceptance time points at which each particular access request from a first data processing circuit is accepted.