Syntest Technologies, Inc v. Cisco Systems, Inc.

Filing 74

CLAIMS CONSTRUCTION ORDER Signed by Judge Paul S. Grewal on October 22, 2013. (psglc2, COURT STAFF) (Filed on 10/22/2013)

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UNITED STATES DISTRICT COURT

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NORTHERN DISTRICT OF CALIFORNIA

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United States District Court
For the Northern District of California

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SAN JOSE DIVISION

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SYNTEST TECHNOLOGIES, INC.,

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Plaintiff,

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v.
CISCO SYSTEMS, INC.,

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Defendant.

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Case No.: 5:12-cv-05965-PSG
CLAIMS CONSTRUCTION ORDER
(Re: Docket No. 35)

In this patent infringement suit, Plaintiff Syntest Technologies, Inc. asserts that

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Defendant Cisco Systems, Inc. infringed one or more claims within three of its patents.1 Consistent

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with Pat. L.R. 4-3(c), the parties seek construction of terms and phrases of the patents-in-suit. A

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lengthy – and helpful – tutorial and claims construction hearing was held last

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Friday, October 18, 2013. As the court previewed at the conclusion of the hearing, the court will
proceed to issue its constructions now without setting forth its reasoning and analysis.

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See Docket No. 64 (First Amended Complaint) (asserting infringement of U.S. Patent Nos.
7,007,213 (“the ’213 patent”), 7,434,126 (“the ’126 patent”), and 7,779,323 (“the ’323 patent”)).
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Case No.: 5:12-cv-05965-PSG
CLAIMS CONSTRUCTION ORDER

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CLAIM TERM/DISPUTE

CONSTRUCTION

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Whether the claim preambles are limiting with
respect to the ’213 patent (claims 1 and 29),
the ’126 patent (claim 1), and
the ’323 patent (claim 1).

Only the preamble to claim 1 of the ’126 patent
is limiting.

“providing ordered capture clocks”
The ’213 patent (claims 1, 29),
the ’126 patent (claim 1), and
the ’323 patent (claim 1)

triggering a capture clock pulse in at least one
clock domain in response to a capture clock
pulse in another clock domain

“applying an ordered sequence of capture clock
pulses to all said scan cells within said N clock
domains in said normal mode during a capture
operation, the ordered sequence of capture clock
pulses comprising at least two capture clock
pulses from two or more selected capture
clocks, for controlling two or more clock
domains, in a sequential order”
The ’213 patent (claims 1, 29)

applying one or more capture clock pulses
(without including shift clock pulses in the
capture window) to the scan cells within a clock
domain in normal mode, followed by applying
one or more capture clock pulses (without
including shift clock pulses in the capture
window) to the scan cells in the next
sequentially ordered clock domain in normal
mode by triggering a capture clock pulse in the
latter clock domain in response to a capture
clock pulse in the former clock domain

“applying an ordered sequence of capture clocks
to all said scan cells within said N clock
domains, the ordered sequence of capture clocks
comprising at least a plurality of capture clock
pulses from two or more selected capture clocks
placed in a sequential order such that all clock
domains are never triggered simultaneously
during a capture operation”
The ’126 patent (claim 5) and
the ’323 patent (claim 1)

applying one or more capture clock pulses
(without including shift clock pulses in the
capture window) to the scan cells within a clock
domain in normal mode, followed by applying
one or more capture clock pulses (without
including shift clock pulses in the capture
window) to the scan cells in the next
sequentially ordered clock domain in normal
mode by triggering a capture clock pulse in the
latter clock domain in response to a capture
clock pulse in the former clock domain such that
all clock domains are never triggered
simultaneously during a capture operation

“when detecting or locating selected delay faults
within a clock domain said selected capture
clock controlling the clock domain contains at
least two consecutive said capture clock pulses
to launch the transition and capture the output
response”

testing of delay faults is performed by applying
two or more consecutive capture clock pulses to
the clock domain with the first pulse initiating
(launching) the transition at a targeted terminal
and each subsequent pulse capturing the
response at a scan cell

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United States District Court
For the Northern District of California

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The ’213 patent (claims 1, 29)

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The ordering of the claim steps 1(a)-1(e).
The ’126 patent (claim 1)
The meaning of checking whether said design
database contains any multiple capture
violations
The ’126 patent (claim 1)

The claimed steps 1(a), 1(b), and 1(c) must
precede 1(d) and 1(e).
verifying whether the design complies with scan
and BIST-specific design rules

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Case No.: 5:12-cv-05965-PSG
CLAIMS CONSTRUCTION ORDER