Invalidity dossier
US 6484041
Method for adjusting power consumption
Current assignee: Nokia Technologies Oy
Added 9/23/2026, 9:43:46 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 6,484,041 B1
Title: Method for adjusting power consumption
Patent number: US6484041B1
Application number: US09/413,297
Inventors: Ari Aho, Markku Lipponen, Jarno Knuutila
Original assignee: Nokia Mobile Phones Ltd.
Current assignee (as listed): Nokia Technologies Oy
Prior art date / priority date: 1998-10-07
Filing date: 1999-10-06
Publication (grant) date: 2002-11-19
Legal status (as listed): Expired – Lifetime; anticipated expiration 2019-10-06
Source: https://patents.google.com/patent/US6484041/en
Purpose: The invention seeks to adjust the power consumption of a communication device dynamically, based on the performance requirements of the applications running at a given time. The stated problem is that operating voltage and clock frequency are conventionally fixed at the design stage for the most demanding application, so less demanding applications still consume maximum power. The excerpt further notes that in systems such as GSM, devices must use only one reference oscillator, so changing processor clock frequency to adjust power consumption was not previously possible.
Plain-language scope (per the supplied claims): The method generates at least a first operating voltage for a communication device having at least one processor (MPU, DSP) executing application program commands. Processor execution rate is set by a clock signal generated by clock-signal generating means powered by a second operating voltage (V_CC2). A performance requirement is specified for the applications; at least the first operating voltage (V_CC1) is adjusted based on the performance requirement of the application(s) executing at a time, while the second operating voltage (V_CC2) is kept substantially constant during that change. The corresponding device claim recites means (MPU, DSP) for examining the performance requirement and means (CTRL, 22) for adjusting the first operating voltage.
What the excerpt does not establish: It omits the full claims and detailed description, does not identify specific prior-art references or their dates, and provides no litigation, validity, or ownership-transfer analysis beyond the listed reassignments. Legal-status and date entries are expressly noted in the source as assumptions.
Generated 10/1/2026, 9:34:03 PM
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Litigation summary
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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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Derivative works
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