The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
This disclosure is Signal Processing oriented and all the processors used here are based on the HARVARD architecture, i.e., all processors have separate instruction memories and working memories.
English (United States)
This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately
75% of the total text.
Page 1 of 3
Serial Multiprocessing Architecture for Signal Processing
This disclosure is Signal Processing oriented and all the processors used
here are based on the HARVARD architecture, i.e., all processors have separate
instruction memories and working memories.
Let us first consider two processors coupled to the same working memory
and with separate instruction memories (Fig. 1). Due to the fact that the working
memory is a double port memory which permits the two processors together to
access the same data bank, data communication is facilitated. No contention
appears in the data bus because there is one data bus for each processor.
Let us now consider several processors coupled two-by-two to the same
working memory (Fig. 2). The processor-N can communicate to the Memory N
and the Memory N+1, the two memories are memory address mapped and the
data buses from Memory N and Memory N+1 are multiplexed at the processor
All processor communications are made through the memory using flags or
Assuming that tasks can be executed in serial, an improved architecture is
therefore proposed based on a basic processor cell (Fig. 3) which is duplicated
many times and serialized.
It includes the processor, its associated instruction memory and the double
port RAM. It is like a quadripole with 2 inputs and 2 outputs. The 2 outputs are
connected to the 2 inputs of the next cell, so that a continuous chain can be