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. 23, 2002
Filed:
Dec. 21, 1995
Antoine Delaruelle, Eindhoven, NL;
Franciscus A. M. Van De Laar, Eindhoven, NL;
Koninklijke Philips Electroncis N.V., Eindhoven, NL;
Abstract
A digital signal is interleaved by delaying samples thereof by an integral number times a unit delay in accordance with a cyclically repeated delay pattern (AL ) . . . AL(M) Select lines (AL ) . . . AL(M)) of a memory (HAS) are cyclically activated (HAS) at a cycle rate equal to unit delay. During the activation of a select line, both data is written and read from the memory. The data written comprises a relevant bit of each sample to be delayed in an integral number of sample groups. Each sample group is associated with one delay pattern cycle. The data read (b( ,j)@a . . . b( ,M,j)@aM . . . b(k, ,j)@a . . . b(k,M,j)@aM) comprises a number of bits which is equal to the number of bits written. The bits are read in accordance with the delay pattern. Accordingly, the speed requirements imposed on the memory (MEM) are relatively lax.