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:
May. 11, 1993
Filed:
Dec. 05, 1990
Kousuke Takahashi, Tokyo, JP;
Tetsuya Yamazaki, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
When a nest level judging device is supplied with tokens each of which has a nest level selected from first through N-th nest levels as a selected level and each of which comprises a header and a data set where the header comprises a data length code and a data identifier code including a nest bit, a counter (31) produces an address signal for specifying starting and end addresses of each of the tokens and a varying address varying from the starting address to the end address. Supplied with the header, a header register (32) produces a data length signal representative of the data length code and a nest bit signal which represents that the each of the tokens is nested in the data set thereof. Supplied with the address signal and the data length signal, an end address calculator (33) calculates the end address of the respective tokens and produces an end address signal representative of the end address. Responsive to selection signals, a selector (34) delivers the end addresses of the respective tokens as first through N-th end addresses. Supplied with the nest bit signal, the address signal, and the first through the N-th end addresses, a decision unit (35) decides a decided nest level, indicative of one of the first through the N-th nest levels that is selected as the selected level. The level decision unit delivers the decided nest level as one of the selection signals to the selector.