Unlock instant, AI-driven research and patent intelligence for your innovation.

Gain adjustment method and electronic equipment

An electronic device and gain adjustment technology, which is applied in the field of communication and electronics, can solve the problems of poor demodulation performance of CMMB receivers, etc.

Inactive Publication Date: 2014-09-10
LENOVO (BEIJING) CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a gain adjustment method and electronic equipment, which are used to solve the technical problem of poor demodulation performance of the CMMB receiver in the prior art when the input signal is strong, and realize the technology of improving the demodulation performance of the CMMB receiver Effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gain adjustment method and electronic equipment
  • Gain adjustment method and electronic equipment
  • Gain adjustment method and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The electronic device is a mobile phone, which has an antenna, a CMMB device and an amplifier for amplifying input signals.

[0061] The amplifier included in the mobile phone is an LNA. The gain of the LNA is related to the supply voltage.

[0062] When the mobile phone leaves the factory, the corresponding relationship between the signal strength and the power supply voltage can be determined. In this embodiment, a signal strength specifically corresponds to a signal strength range, that is, a signal strength is not a signal strength value, but includes a series of signal strength values.

[0063] In this embodiment, three signal strength ranges are determined, which are respectively a first signal strength range, a second signal strength range, and a third signal strength range. For example, in this embodiment, the first signal strength range is -62dBm, the The power supply voltage corresponding to the first signal strength range is 100mV, the power supply voltage...

Embodiment 2

[0071] The electronic device is a mobile phone, which has an antenna, a CMMB device and an amplifier for amplifying input signals.

[0072] The amplifier included in the mobile phone is an LNA. The gain of the LNA is related to the supply voltage.

[0073] When the mobile phone leaves the factory, the corresponding relationship between the signal strength and the power supply voltage can be determined. In this embodiment, a signal strength specifically corresponds to a signal strength range, that is, a signal strength is not a signal strength value, but includes a series of signal strength values.

[0074] In this embodiment, three signal strength ranges are determined, which are respectively the first signal strength range, the second signal strength range, and the third signal strength range.

[0075] For example, in this embodiment, the first signal strength range is -62 dBm.

[0076] Wherein, the first power supply voltage corresponding to the first signal strength rang...

Embodiment 3

[0085] The electronic device is a mobile phone, which has an antenna, a CMMB device and an amplifier for amplifying input signals.

[0086] The amplifier included in the mobile phone is an LNA. The gain of the LNA is related to the supply voltage. For example, the model of the LNA in this embodiment is AD8683.

[0087] When the mobile phone leaves the factory, the corresponding relationship between the signal strength and the power supply voltage can be determined. In this embodiment, a signal strength specifically corresponds to a signal strength range, that is, a signal strength is not a signal strength value, but includes a series of signal strength values.

[0088] In this embodiment, nine signal strength ranges are determined, namely the first signal strength range, the second signal strength range, the third signal strength range, the fourth signal strength range, the fifth signal strength range, and the sixth signal strength range , the seventh signal strength range,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided are a gain adjustment method and a piece of electronic equipment. The invention discloses a voltage adjustment method used for improving the demodulation performance of a CMMB receiver. The method comprises the steps of acquiring a first input signal, determining a first signal strength corresponding to the first input signal, and determining a first power supply voltage corresponding to the first signal strength according to the corresponding relationship between signal strength and power supply voltage to adjust the gain of an amplifier. The invention further discloses a piece of electronic equipment for implementing the method.

Description

technical field [0001] The invention relates to the fields of communication and electronics, in particular to a gain adjustment method and electronic equipment. Background technique [0002] With the continuous development of science and technology, electronic technology has also developed rapidly, and there are more and more types of electronic products, and people have also enjoyed various conveniences brought by the development of science and technology. Now people can enjoy the comfortable life brought by the development of science and technology through various types of electronic devices. For example, mobile phones and other electronic devices have become an indispensable part of people's lives. People can use mobile phones and other electronic devices to make phone calls, send text messages, etc. to strengthen contact with other people. [0003] In the prior art, the mobile phone built-in antenna design with CMMB (China Mobile Multimedia Broadcasting, China Mobile Mu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/16
Inventor 洪晓锋
Owner LENOVO (BEIJING) CO LTD