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Displaying 189-194 of 194 results

1011 Exhibit: ParkerVision Inc Disclosure of Preliminary Infringement Contentions vs TCL

Document IPR2021-00990, No. 1011-11 Exhibit - ParkerVision Inc Disclosure of Preliminary Infringement Contentions vs TCL (P.T.A.B. May. 20, 2021)
This preliminary understanding is obtained at least through ParkerVision’s independent investigation of TCL’s televisions, examination of teardowns and circuit extractions, and review of relevant literature and manuals.
In due course, after receiving discovery of products made, used, sold, offered for sale and/or imported by TCL in the United States, ParkerVision will supplement these IC’s as applicable.
The accused instrumentalities also include TCL products that are considered sold in the United States according to the Federal Circuit’s decision in Carnegie Mellon Univ.
ParkerVision will disclose and produce an expert report regarding infringement with appropriate analysis pursuant to the Court’s Scheduling Order.
Further, ParkerVision asserts infringement under the doctrine of equivalents, to the extent that the difference between any component of any product and any claim element is insubstantial.
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1002 Exhibit: Ex 1002 Executed Declaration of Dr Matthew Shoemake

Document IPR2021-00990, No. 1002-16 Exhibit - Ex 1002 Executed Declaration of Dr Matthew Shoemake (P.T.A.B. May. 20, 2021)
It is my opinion that a person having ordinary skill in the relevant art at the time of the invention (“POSITA”) would have been someone with at least an undergraduate degree in electrical engineering or a related subject and two or more years of experience in the fields of communication systems, signal processing TCL & Hisense Ex. 1002 Page 18
I further understand that permissible uses of general knowledge including (1) supplying claim limitations, (2) supporting a motivation to combine references in an obviousness analysis, and (3) any other purpose related to patentability.
However, “[t]he electronic alignment of the circuit components is flexible” (Id., 9:48-49), and in a second configuration shown in Figure 20A (above left), the switch (gray) is in series with the input signal (purple), and the capacitor (brown) shunted to ground.
According to the patent, using such modules has various advantages, including “lower power consumption, longer battery life, fewer parts, lower cost, less tuning, and more effective signal transmission and reception.” (Ex.1001-’444, 2:32–36.)
Enz is an IEEE publication from 1996, which describes a number of conventional “circuit techniques” employing an operational amplifier “whose main function in the circuit is to create a virtual ground, i.e., a node with a zero (or constant) voltage at its input terminal without sinking any current.” (Ex.1007-Enz at 3).
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1015 Exhibit: US Patent No 5,742,641

Document IPR2021-00990, No. 1015-15 Exhibit - US Patent No 5,742,641 (P.T.A.B. May. 20, 2021)
However, these techniques do not eliminate the problem completely in intermittently keyed networks because during data at the beginning of a trans- mitter key-up can be received in error or not at all, while the AGC is attempting to lock or settle onto the desired ampli- 30 fication or attenuation level.
It is yet another object of the present invention to provide compensation for FM deviation with less dependency on an automatic gain control mechanism such that data at the 60 beginning of a transmission from a base station is received with fewer errors.
The foregoing and other objects, aspects and advantages of the invention will be better understood from the following detailed description with reference to the drawings, in which: FIG. 1 depicts an architecture of a single frequency reuse radio data network.
Thus, data received from an intermittently 10 keyed single frequency reuse network while the AGC is attempting to determine an appropriate gain can be lost or error prone resulting in more retries and retransmission which degrade the effective bandwidth of the RF channel.
FM Deviation Compensation for Received Signals In an intermittently keyed single frequency reuse network each modem is capable of hearing all messages from base stations radiating in a given geographical vicinity.
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1006 Exhibit: US Patent No 5,937,013

Document IPR2021-00990, No. 1006-6 Exhibit - US Patent No 5,937,013 (P.T.A.B. May. 20, 2021)
In modern wireless communication systems, it is the task of the receiver to recover with high sensitivity and accuracy baseband signal data or messages which have been trans- mitted or broadcast by way of modulation on an radio frequency (RF) carrier.
5,937,013 present invention can also be operated open-loop (unlocked), as with a conventional mixer, so long as the sampling clock is precisely and accurately tuneable (e.g. to within one part in two thousand, easily achievable with current technology) and low-jitter.
Naturally, the four subsample packet provides a preferred demodulation scheme which offers high performance result- ing from enhanced immunity to common-mode interference or other spurious offsets which are undesirably introduced into the system.
An obvious added advantage of the present invention is that the circuit components are readily realisable in CMOS technology and the potential for monolithic integration is high.
A receiver according to claim 2 wherein successive sub-samples within the same sample are spaced by a time delay, tisub, which is substantially equal to: T.,..b.=TRAN+v4) is the period of said carrier frequency of the where i, incomming signal and N is a non-zero natural number.
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1005 Exhibit: SN74CBT3253D Dual 1 of 4 FET MultiplexerDemultiplexer

Document IPR2021-00990, No. 1005-5 Exhibit - SN74CBT3253D Dual 1 of 4 FET MultiplexerDemultiplexer (P.T.A.B. May. 20, 2021)

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1010 Exhibit: May 7, 2021 email from WDTX clerk

Document IPR2021-00990, No. 1010-10 Exhibit - May 7, 2021 email from WDTX clerk (P.T.A.B. May. 20, 2021)

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