Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Voice control backlight simple circuit for keyboard

A backlight and circuit technology, applied in the direction of electric light circuit arrangement, light source, electric light source, etc., can solve the problems that the flickering law of the backlight cannot interact with the external sound, the flickering law of the backlight is fixed, etc., and achieves a simple structure and low cost. Effect

Inactive Publication Date: 2015-05-27
四川容汇达医疗科技发展有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current backlit keyboard has a fixed pattern of backlight flashing, which is controlled by a fixed built-in program. The pattern of backlight flashing cannot interact with external sounds, and cannot meet people's needs for differentiated backlight effects.

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
  • Voice control backlight simple circuit for keyboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] Such as figure 1 As shown, the simple circuit of the sound-activated backlight for the keyboard of the present invention includes a DC power supply E, a unipolar switch K, a first backlight H1, a second backlight H2, a bidirectional thyristor T, and a first resistor R1 to a seventh resistor R7 , the first capacitor C1, the second capacitor C2, the third capacitor C3, the first transistor VT1, the second transistor VT2, the potentiometer RP and the electret microphone BM, the positive pole of the DC power supply E and the unipolar switch K The first terminal of the unipolar switch K is connected to the first terminal of the first resistor R1 and the first terminal of the first backlight H1, and the second terminal of the first backlight H1 is connected to the second terminal of the second backlight H2 The first end of the second backlight H2 is connected to the first...

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

The present invention discloses a voice control backlight simple circuit for a keyboard, and the circuit includes a DC power source, a monopole switch, a first backlight, a second backlight, a bidirectional triode thyristor, a first resistor to a seventh resistor, a first capacitor, a second capacitor, a third capacitor, a first triode, a second triode, a potentiometer and an electret microphone; the electret microphone, the first triode, the second triode and the potentiometer consist of a voice pickup and amplifying circuit; and the bidirectional triode thyristor, the first capacitor to the fifth resistor consist of a control and implementing circuit. The voice control backlight simple circuit for a keyboard of the present invention controls brightness of the backlight via the voice signal; the backlight synchronously shines along with the size of the voice signal; the structure of the entire circuit is simple; the cost is low; and the circuit has a competitive power in the market.

Description

technical field [0001] The invention relates to a backlight circuit for a keyboard, in particular to a simple sound-activated backlight circuit for a keyboard. Background technique [0002] With the rapid development of electronic products, many electronic products begin to have different degrees of lighting decoration, and the backlit keyboard is one of the products. The flickering pattern of the backlight of the current backlit keyboard is very fixed, which is controlled by a fixed built-in program. The flickering pattern of the backlight cannot interact with external sounds, and cannot meet people's needs for differentiated backlight effects. Contents of the invention [0003] The object of the present invention is to provide a simple circuit for a voice-activated backlight for a keyboard in order to solve the above problems. [0004] The present invention achieves the above object through the following technical solutions: [0005] The simple circuit of the sound-act...

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
IPC IPC(8): H05B37/02
Inventor 潘艳李尚书陈勇
Owner 四川容汇达医疗科技发展有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com