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Signal Processing Circuit and Method

A signal processing circuit, digital signal processing technology, applied in electrical components, modulated electromagnetic waves, DC level restoration device/bias distortion correction, etc., can solve the problems of good circuit components, power input and current consumption not working efficiently, etc.

Active Publication Date: 2012-10-03
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in most cases of application the circuit components are too good, i.e. they do not function efficiently in terms of power input and current consumption

Method used

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  • Signal Processing Circuit and Method
  • Signal Processing Circuit and Method
  • Signal Processing Circuit and Method

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Embodiment Construction

[0016] Before embodiments of the present invention will be described in detail below with reference to the accompanying drawings, it should be noted that the same elements or elements having the same function are given the same reference numerals and repeated description of the elements will be omitted. Descriptions of elements with the same reference numbers are therefore interchangeable.

[0017] FIG. 1 a shows a diagram of a signal processing circuit 100 a or a transmitter 100 a for providing a modulated analogue transmit signal 101 based on a digital transmit data signal 103 . The signal processing circuit 100a is configured to vary the resolution in dependence on a detected or predefined parameter 105 when providing the modulated analog transmit signal 101 .

[0018] It has been found that the requirements imposed on the modulated analog transmit signal 101 will vary as a function of various parameters, or in other words, given different operating conditions, the requirem...

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Abstract

A signal processing circuit for providing a modulated analog transmit signal on the basis of a digital transmit data signal is configured to vary a resolution in dependence on a detected or predefined parameter when providing the modulated analog transmit signal.

Description

technical field [0001] Embodiments of the invention provide signal processing circuitry for providing a modulated analog transmit signal based on a digital transmit data signal. Further embodiments provide signal processing circuitry for providing a digital receive data signal based on a modulated analog receive signal. Further embodiments provide methods for providing modulated analog transmit signals or digital receive data signals. Background technique [0002] Transceivers are usually designed such that, under any operating conditions, any requirements of the system can be met. This means that the highest system requirements and the most stringent application conditions are the design specifications for the circuit. Consequently, in most cases of application the circuit components are too good, ie they do not function efficiently with regard to power input and current consumption. Contents of the invention [0003] Embodiments of the invention provide signal process...

Claims

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Application Information

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IPC IPC(8): H04B1/04H04B1/16H04B1/40
CPCH04L25/06H04L25/03H04B2001/0425H04B1/0475H03F1/3241H03L7/08H03C7/00
Inventor D·弗里德里希A·霍尔姆
Owner APPLE INC