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 article describes a method to measure the performance of serial line channel activity. Due to the methodology, performance degradation of the measured channel(s) is bypassed.
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
67% of the total text.
Page 1 of 3
Serial Channel Utilization Distribution
This article describes a method to measure the performance of serial line
channel activity. Due to the methodology, performance degradation of the
measured channel(s) is bypassed.
Implementation is achieved by monitoring specific bits of the
serial channel control function via the associated control registers
in the control unit (Sensor Based Control Unit (SBCU) "W" and "X"
registers in Fig. 1). When gated with a particular channel line
selection, it is possible to capture and record channel utilization
distribution statistics of the selected channel line in decoding four
address occurrences in the control registers:
. Positive response (shown as W-X = 130)
. First data byte from channel (shown as W-X = 345)
. Byte transmitted from channel (shown as W-X = 359)
. Last data byte from channel or loop ending character
(shown as W-X = 36B)
Utilization of the selected channel line is interpreted into
. Elapsed time
. Number of responses
. Response time
. Number of data transfers
. Data time
. Response + data time
. Number of bytes transferred
As shown in Fig. 2, the four address occurrences described
above are extracted, encoded and recorded by monitor. The data
includes the following information:
. Elapsed time (monitoring time)
. Response time of the SBCU channel (time from when
selection was first initiated to when data
. Number of user requests occurring during monitoring