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Power Management Solutions LLC v. Advanced Micro Devices, Inc.

United States District Court, Third Circuit

May 30, 2013

POWER MANAGEMENT SOLUTIONS LLC, Plaintiff,
v.
ADVANCED MICRO DEVICES, INC., Defendant.

CLAIM CONSTRUCTION ORDER

RICHARD G. ANDREWS, District Judge.

The parties having briefed their positions on construction of the claims of United States Patent No. 5, 504, 909 (the "'909 patent"), and the Court having conducted a consolidated Markman hearing on the disputed terms on January 18, 2013, [1] it is hereby ordered that, as used in the '909 patent, the terms below are construed as follows:

I. AGREED-UPON TERMS

The parties agreed upon the constructions of certain terms of the '909 patent, and the Court accepts them as set forth below for the purposes of this litigation.

Claim Term: "first control input" Agreed upon Construction: the structural element of the power gating means that receives the signal that controls the power gating means Claim Term: "second control input" Agreed upon Construction: the structural element of the switching means that receives the signal that controls the switching means

Claim Term: "means for constructing and interconnecting electrical circuits" Agreed upon Construction: integrated circuit substrate Claim Term: "power gating means" Agreed upon Construction: This limitation is governed by 35 U.S.C. § 112, ¶ 6. Function: coupling power between the external power supply and the internal functional circuit in response to the assertion of the second externally generated electrical signal, and uncoupling power between the external power supply and the internal functional circuit in response to the deassertion of the second externally generated electrical signal Corresponding Structure: A power gate as defined at col. 3:61-4:8, and as shown as elements 60 and 61 in figures 2 through 4. A power gate is a power switching means for making or breaking a connection between a power source and its load on command, implemented as an electrically controllable electronic switch. A power gate consists of three terminals: a control input terminal, a power input terminal, and a power output terminal. When the control input terminal is asserted, the power gate causes a low impedance to be presented between the power input terminal and the power output terminal. When the control input terminal is deasserted, the power gate causes a high impedance to be presented between the power input terminal and the power output terminal. A power gate differs from an I/O switch in that it is capable of transferring a specified amount of power from its power input terminal to its power output terminal with a specified efficiency.

Claim Term: "switching means" Agreed upon Construction: This limitation is governed by 35 U.S.C. § 112, ¶ 6. Function: coupling the first electrical signals passed between the external functional circuit and the internal functional circuit in response to the assertion of the second externally generated electrical signal, and uncoupling the first electrical signals passed between the external functional circuit and the internal functional circuit in response to the deassertion of the second externally generated electrical signal Corresponding Structure: An I/O switch as defined at col. 4:9-22, and as shown as elements 62 and 63 in figures 2 through 4, which is a bidirectional switch as shown by the bidirectional arrows of connection means 32, 52 and 33, 53. An I/O switch is an electronically controllable electronic signal switching means for isolating a powered-on circuit from a powered-off circuit. An I/O switch consists of three terminals: a control input terminal, a signal input terminal, and a signal output terminal. When the control input terminal is asserted, the I/O switch causes a low impedance to be presented between the signal input terminal and the signal output terminal. When the control input terminal is deasserted, the I/O switch causes a high impedance to be presented between the signal input terminal and the signal output terminal. An I/O switch differs from a power gate in that it is required to transport a signal from its signal input to its signal output with specified fidelity.

Claim Term: "sequencing means" Agreed upon Construction: This limitation is governed by 35 U.S.C. § 112, ¶ 6. Function: controlling the relative time relationship of changes in the state of coupling in the power gating means and in the switching means Corresponding Structure: A sequencer as disclosed at '909 Patent, Col. 14:56-65, and as shown as element 65 in figure 4. A sequencer has two output terminals: a power gate control output terminal and a switch control output terminal. The power gate control output terminal of the sequencer is connected to the control input terminals of the power gates via a connection means. The switch control output terminal of the sequencer is connected to the control input terminals on the 110 switches via a connection means. Claim Term: "third electrical signal" Agreed upon Construction:[2] an electrical control signal that is passed from the sequencing means to the first control input of the power gating means at a different time than the fourth electrical signal is sent to the switching means Claim Term: "fourth electrical signal" Agreed upon Construction: an electrical control signal that is passed from the sequencing means to the second control input of the switching means at a different time than the third electrical signal is sent to the power gating means

II. DISPUTED TERMS

The parties have disputed the constructions of certain other terms of the '909 patent. The Court adopts the ...


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