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. 10, 1997
Filed:
Jun. 21, 1995
Keiji Negi, Tokyo, JP;
Ando Electric Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to pseudo-random pattern generating circuit for outputting pseudo-random patterns of a plurality of pseudo-random stages, characterized in comprising: a plurality of latch circuits for conducting delayed output of data input in synchrony with a clock input; a multiple input exclusive OR arithmetic circuit, an output of which is inputted into the aforementioned latch circuits; and a select circuit for selecting an output of the latch circuit and inputting this output as input data to the exclusive OR arithmetic circuit; wherein the select circuit switches an output to the exclusive OR arithmetic circuit according to an inputted select signal. In addition, it is also possible for the pseudo-random pattern generating circuit to further comprise a decoding circuit for converting an inputted pseudo-random selection signal to a select signal, and outputting this select signal.