Invalidity dossier
US 6832080
Apparatus for and method of adapting a radio receiver using control functions
Current assignee: Ericsson Inc
Added 9/23/2026, 8:33:47 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US 6,832,080 B1
Title: Apparatus for and method of adapting a radio receiver using control functions
Assignee/Inventor: Original assignee Ericsson Inc. Inventors: Huseyin Arslan, Karl James Molnar, Gregory E. Bottomley, Ali S. Khayrallah.
Dates: Priority/filing 2000-09-12; published 2004-12-14. Status listed as Expired – Lifetime, with adjusted expiration 2022-01-31.
Purpose: Co-channel interference degrades radio receiver performance. Joint demodulation can improve performance in interference-limited environments but at the expense of computational complexity, and can even degrade performance where little interference exists or where multiple interferers are present. The invention addresses selectively applying joint demodulation only when a single strong co-channel interferer is present.
Plain-language scope: The patent describes a radio receiver with a Doppler spread estimator generating an estimated Doppler spread value of the carrier, a first estimator generating an estimated carrier-to-dominant-interferer-plus-noise ratio, and a second estimator generating an estimated dominant-interferer-plus-noise-to-noise ratio. A control unit selectively controls the receiver, based on these estimated values, to implement either single-user (conventional) demodulation of the carrier or joint demodulation of the carrier and dominant interferer. A corresponding method is contemplated. The text notes joint demodulation is sensitive to dispersion in the desired channel response but not highly sensitive to dispersion in the interferer channel response. Figures include a control portion block diagram (Fig. 1), control unit (Fig. 2), Doppler spread estimator (Fig. 3), demodulate unit (Fig. 4), and two operational flow charts (Figs. 5–6).
Source: https://patents.google.com/patent/US6832080/en
What the excerpt does not establish: It provides no full claim language, no dependent-claim detail, no complete specification text (the source is explicitly excerpted), and no verified legal conclusions on status, expiration, or ownership. It does not establish prior art, validity, or litigation. Classifications listed include H04B1/7105 (joint detection) and H04B2201/7071 (dynamic control of receiver resources).
Generated 10/1/2026, 9:41:20 PM
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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