Harmonic has filed a patent for an apparatus that dynamically adjusts the power amplifier bias of a power amplifier. The circuitry within the apparatus measures the power level being handled by the power amplifier and adjusts the bias based on this measurement and the desired fidelity of RF signals processed by the amplifier. This adjustment reduces power consumption and enables significant energy savings in various devices such as Remote PHY nodes, wireless communication devices, and satellite transponders. GlobalData’s report on Harmonic gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Harmonic, cloud gaming was a key innovation area identified from patents. Harmonic's grant share as of September 2023 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Dynamic adjustment of power amplifier bias for improved power consumption
A recently filed patent (Publication Number: US20230253935A1) describes an apparatus for dynamic adjustment of a power amplifier bias. The apparatus includes circuitry that measures the power level currently being handled by the power amplifier and adjusts the power amplifier bias based on this measurement and the desired fidelity of RF signals processed by the power amplifier.
The adjustment in the power amplifier bias can also result in a change in the power consumption of the power amplifier. The apparatus can be used in various applications such as Remote PHY nodes, Remote MACPHY nodes, HFC RF amplifiers, wireless communication devices, cellular transmission equipment, and satellite transponders.
The circuitry in the apparatus adjusts the power amplifier bias by referencing a set of configurable parameters. It can measure the power level being handled by the power amplifier at different locations in the signal path, either prior to or after the power amplifier. The threshold for raising the power amplifier bias can be satisfied in less time than the threshold for lowering the power amplifier bias.
Additionally, the circuitry can report the adjusted power amplifier bias to a remote location over a network, allowing for remote monitoring and control. It can perform multiple consecutive measurements of the power level using averaging techniques or continuously measure the power level and apply low-pass filtering to the measurement.
Furthermore, the circuitry is capable of adjusting the power amplifier bias of multiple power amplifiers based on the RF signal power measured at a single power amplifier.
In summary, the patent describes an apparatus and method for dynamically adjusting the power amplifier bias of a power amplifier based on the power level being handled and the desired fidelity of RF signals. This technology has applications in various fields, including telecommunications and wireless communication devices. The apparatus includes circuitry that can measure the power level, adjust the bias, and report the adjusted bias to a remote location. It also provides flexibility in terms of measurement location and offers efficient power consumption management.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
