US4728925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data communications analyzer
Assignee: Tektronix Inc
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Filing: 1985-07-03
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Granted: 1988-03-01
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Expires: 2005-07-03
Abstract
Abstract Apparatus for comparing a stream of data characters with a predetermined string of test characters has an input device for receiving the stream of data characters and a main processor for generating the predetermined string of test characters. A hardware register receives the predetermined string of test characters from the main processor, and a comparator device compares the stream of data characters with the contents of the register device and generates a response in the event that a portion of the stream is identical to the string of test characters generated by the main processor. A second processor receives the response and sends a report to the main processor.
Inventors
- 👤 William C. Randle
- 👤 Dennis L. Holmbo
- 👤 Kenneth D. Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:46
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/22; G06F11/25; G06F11/07; G06F11/0703; G06F11/0751; G06F11/0763
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
Apparatus for comparing a stream of data characters with a predetermined string of test characters comprising: a common bus; an input device connected to the common bus for receiving the stream of data characters; a first processor connected to the common bus for generating said predetermined string of test characters; register means connected to the common bus for receiving the predetermined string of test characters from the first processor; comparator means connected to the common bus for comparing the stream of data characters from the input device with the contents of the register means and generating a response in the event that a protion of the stream is identical to said string; and a second processor connected to the common bus for receiving said response and sending a report to the first processor.
Claim 2
Dependent Claim
133 words
Apparatus for comparing a stream of data characters with a predetermined string of test characters comprising: a common bus; an input device connected to the common bus for receiving the stream of data characters; a first processor connected to the common bus for generating said predetermined string of test characters; register means connected to the common bus for receiving the predetermined string of test characters from the first processor; comparator means connected to the common bus for comparing the stream of data characters from the input device with the contents of the register means and generating a response in the event that a protion of the stream is identical to said string; and a second processor connected to the common bus for receiving said response and sending a report to the first processor.
Claim 3
Dependent Claim
26 words
Apparatus according to claim 1, wherein the register means and the comparator means are incorporated in a common monolithic integrated circuit connected to the common bus.
Claim 4
Dependent Claim
19 words
Apparatus according to claim 1, wherein the second processor is connected to the common bus through an interface device.
Claim 5
Dependent Claim
31 words
Apparatus according to claim 1, wherein the first processor uses the report sent by the second processor to cause a display connected to the common bus to provide a visual message.
Claim 6
Dependent Claim
25 words
Apparatus according to claim 1, wherein the second processor controls loading of the data characters into a random access memory connected to the common bus.
Claim 7
Dependent Claim
117 words
An improved data communications analyzer for comparing a stream of data charaters with a predetermined string of test characters of the type having a processor, an input/output port and a user interface including a display, all interconnected via a common bus, wherein the improvement comprises: a register and comparator connected to the common bus for storing the predetermined string and for comparing the stream of data characters with the predetermined string to generate a response in the event a portion of the stream of data characters is identical to the predetermined string; and a co-processor connected to the common bus for sending a report to the processor when the response is received from the register and comparator.
Claim 8
Dependent Claim
117 words
An improved data communications analyzer for comparing a stream of data charaters with a predetermined string of test characters of the type having a processor, an input/output port and a user interface including a display, all interconnected via a common bus, wherein the improvement comprises: a register and comparator connected to the common bus for storing the predetermined string and for comparing the stream of data characters with the predetermined string to generate a response in the event a portion of the stream of data characters is identical to the predetermined string; and a co-processor connected to the common bus for sending a report to the processor when the response is received from the register and comparator.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |