SIRF Technology v. ITC

Court of Appeals for the Federal Circuit·Decided April 12, 2010·No. 09-1262·Published

Opinion

United States Court of Appeals for the Federal Circuit 2009-1262

SIRF TECHNOLOGY, INC., E-TEN CORP., PHAROS SCIENCE & APPLICATIONS, INC., MITAC INTERNATIONAL CORP., and MIO TECHNOLOGY LIMITED, USA,

Appellants,

v.

INTERNATIONAL TRADE COMMISSION, Appellee,

and

BROADCOM CORPORATION and GLOBAL LOCATE, INC., Intervenors.

Gregory A. Castanias, Jones Day, of Washington, DC, argued for appellants. With him on the brief were Thomas J. Davis; Thomas V. Heyman, Todd R. Geremia and Iman Lordgooei, of New York, New York.

Daniel E. Valencia, Attorney, Office of the General Counsel, United States International Trade Commission, of Washington, DC, argued for appellee. With him on the brief were James M. Lyons, General Counsel, and Andrea C. Casson, Assistant General Counsel.

William F. Lee, Wilmer Cutler Pickering Hale and Dorr LLP, of Boston, Massachusetts, argued for intervenors. With him on the brief were Michael J. Summersgill; James L. Quarles, III, Michael D. Esch and Todd C. Zubler, of Washington, DC; S. Calvin Walden of New York, New York.

Appealed from: United States International Trade Commission

United States Court of Appeals for the Federal Circuit 2009-1262

SIRF TECHNOLOGY, INC., E-TEN CORP., PHAROS SCIENCE & APPLICATIONS, INC., MITAC INTERNATIONAL CORP., and MIO TECHNOLOGY LIMITED, USA,

Appellants,

v.

INTERNATIONAL TRADE COMMISSION, Appellee.

and

BROADCOM CORPORATION and GLOBAL LOCATE, INC., Intervenors.

On appeal from the United States International Trade Commission in Investigation No. 337-TA-602.

DECIDED: April 12, 2010

Before MICHEL, Chief Judge, CLEVENGER, and DYK, Circuit Judges. DYK, Circuit Judge.

SiRF Technology, Inc. (“SiRF”), E-TEN Information Systems Co., Ltd. (“E-TEN”), Pharos Science & Applications, Inc. (“Pharos”), MiTAC International Corp. (“MiTAC”), and Mio Technology Limited, USA (“Mio”) (collectively, “appellants”) appeal from a decision of the International Trade Commission (“Commission”). The Commission found that appellants violated section 337 of the Tariff Act of 1930 (19 U.S.C. § 1337)

through the unlawful importation, sale for importation, and sale after importation of certain Global Positioning System (“GPS”) devices and products containing these devices that infringe certain patents owned by Global Locate, Inc. and Broadcom Corp. (“Broadcom”) (collectively, “Global Locate”). 1 The Commission issued a limited exclusion order and a cease and desist order. In re Certain GPS Devices & Prods. Containing Same, Inv. No. 337-TA-602 (Int’l Trade Comm’n Jan. 15, 2009) (“Final Determination”). We affirm.

BACKGROUND

Global Locate owns U.S. Patent No. 6,417,801 (“the ’801 patent”), U.S. Patent No. 6,606,346 (“the ’346 patent”), U.S. Patent No. 6,651,000 (“the ’000 patent”), U.S. Patent No. 6,704,651 (“the ’651 patent”), U.S. Patent No. 6,937,187 (“the ’187 patent”), and U.S. Patent No. 7,158,080 (“the ’080 patent”). These six patents are in the field of GPS technology. GPS is a satellite navigation system comprising thirty-two satellites orbiting Earth that were placed in orbit by the United States and are operated by the United States. These satellites and their orbits are arranged so that at least four satellites are always in a direct line-of-sight to any point on Earth. The GPS system permits a GPS-enabled receiver to detect signals from at least four satellites and use that information to compute its distance from each satellite, and thus its precise position on Earth, through a process known as trilateration. Each satellite transmits two types of information to a GPS-receiver—(1) a pseudorandom noise (“PN” or “PRN”) code, and (2) the Navigation (“NAV”) message. PRN codes are used by the receiver to determine

1 Intervenor Broadcom Corp. acquired Global Locate in July of 2007, and was added as a complainant in this investigation on February 5, 2008.

the distance to the satellite. NAV messages contain information regarding when the received signals were sent by the satellite, ephemeris data which is data regarding the location and trajectory of the satellite, and almanac information which is information regarding the position of other satellites in the constellation. Conventional GPS receivers depend on both the PRN code and the NAV message to calculate their position. The GPS system itself is not patented. However, there are various patents in devices, systems, and methods for processing GPS satellite signals.

It is difficult to receive the NAV message in certain environments due to poor signal reception. In order to solve this problem, Assisted-GPS (“A-GPS”) was developed. In A-GPS systems, the NAV message is collected by a receiving station with an unobstructed view of the sky, and then transmitted to GPS receivers via computer servers and over a connection such as the Internet or a wireless telephone network.

The patents-in-suit are owned by Global Locate and are directed to various improvements over conventional A-GPS technology. The ’346 patent is entitled “Method and Apparatus for Computing Signal Correlation.” It is directed to a novel method of performing signal correlation, which is the process by which GPS receivers compare incoming signals to locally generated codes in order to identify the satellite sending the signal and the “offset” between the received signal and the stored code. The ’651 patent is entitled “Method and Apparatus for Locating Mobile Receivers Using a Wide Area Reference Network for Propagating Ephemeris.” The ’651 patent teaches sending satellite ephemeris to a mobile GPS receiver through an A-GPS network and using the ephemeris at the receiver to more precisely locate the satellites and narrow

the search for weak signals, thereby improving the receiver’s acquisition sensitivity. The ’000 patent is entitled “Method and Apparatus for Generating and Distributing Satellite Tracking Information in a Compact Format.” The patent teaches the compaction of satellite ephemeris data in order for it to be received more quickly by GPS receivers than uncompacted data. The ’080 patent is entitled “Method and Apparatus for Using Long Term Satellite Tracking Data in a Remote Receiver.” It teaches using certain algorithms to predict ephemeris data for satellites in the future, receiving that “long term” data at a GPS receiver, and using it to locate satellites and calculate position. The ’801 patent is entitled “Method and Apparatus for Time-Free Processing of GPS Signals.” It teaches a GPS receiver that can calculate its position without having to wait to receive time information from a satellite, thereby allowing the receiver to calculate its position more quickly and even in weak-signal environments. The ’187 patent is entitled “Method and Apparatus for Forming a Dynamic Model to Locate Position of a Satellite Receiver.” This patent is a continuation-in-part of the ’801 patent. It extends the solution of the ’801 patent from the discrete calculation of a GPS receiver’s position at a particular moment to the use of a “dynamic model” that allows the improved, repeated calculation of a GPS receiver’s position as it changes over time.

SiRF, which is accused of both direct and induced infringement, developed, manufactured, and sold certain GPS chips. SiRF’s SiRFstarIII chips are accused of being involved in the infringement of the ’000, ’080, ’651, ’801, and ’187 patents. SiRF’s InstantGPS chips are accused of being involved in the infringement of the ’346, ’801, and ’187 patents. These chips, when incorporated into end-user GPS devices, allow such devices to compute absolute position using the GPS system. SiRF’s

SyncFreeNav is software embedded in SiRFstarIII chips that calculates current positional information for the GPS receiver.

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