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Handheld electronic device and corresponding anti-noise earphone

A technology of electronic devices and anti-noise earphones, applied in earpiece/earphone accessories, electrical components, transducer circuits, etc.

Inactive Publication Date: 2015-01-14
MERRY ELECTRONICS (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, because the existing anti-noise earphones all need to use batteries to supply power to their internal anti-noise circuits, resulting in the volume and weight of the existing anti-noise earphones. Much larger than the volume and weight of ordinary earphones, thus causing inconvenience to users

Method used

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  • Handheld electronic device and corresponding anti-noise earphone
  • Handheld electronic device and corresponding anti-noise earphone
  • Handheld electronic device and corresponding anti-noise earphone

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0040] figure 1 In order to draw the internal main circuit of a handheld electronic device according to an embodiment of the present invention and the internal main circuit of a general headset with a call microphone. in figure 1 Here, the label 100 represents the handheld electronic device, and the label 200 represents the headset. Such as figure 1 As shown, the handheld electronic device 100 includes a connection interface 110, an impedance unit 120, an impedance unit 122, a voltage supply unit 118, and a baseband circuit 170. The connection interface 110 has a pin 112, a pin 114, and a pin 116. The pin 112 is used to transmit the speaker signal SPO1, and the pin 114 is used to transmit the speaker signal SPO2. The impedance unit 120 is electrically connected between the pin 114 and the power supply voltage V_MSMP, and the impedance unit 122 is...

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Abstract

The invention discloses a handheld electronic device and a corresponding anti-noise earphone. The handheld electronic device comprises the components of: a connecting interface which is provided with a first pin, a second pin and a third pin, wherein the first pin is used for transmitting first loudspeaker signals, and the second pin is used for transmitting second loudspeaker signals; a first impedance unit which is electrically connected between the second pin and power voltage; a second impedance unit which is electrically connected between the second pin and a reference level; a voltage supply unit which is electrically connected with the third pin; and a fundamental frequency circuit which is electrically connected with the second pin, the third pin and the voltage supply unit, and is used for determining whether an earphone is electrically connected with the connecting interface according to voltage change on the second pin. The handheld electronic device according to the invention can identify type of the earphone and furthermore can provide an operating power supply which is required by an anti-noise circuit of the anti-noise earphone. Furthermore the anti-noise earphone of the invention does not require any battery.

Description

[0001] technical field [0002] The invention belongs to the field of hand-held electronic devices, and in particular relates to a hand-held electronic device related to an anti-noise circuit capable of providing working voltage to an anti-noise earphone, and an anti-noise earphone without using any battery. Background technique [0003] Noise-cancelling earphones can allow users to enjoy music without raising the volume too much, or help passengers on airplanes, trains, buses, etc. to sleep, because they can eliminate external environmental noise. Therefore, anti-noise headphones are gradually loved by consumers. [0004] However, since the existing anti-noise earphones need to use batteries to supply power to their internal anti-noise circuits, the volume and weight of the existing anti-noise earphones are much larger than the volume and weight of ordinary earphones, thus causing users to use more. the inconvenience. Contents of the invention [0005] The purpose of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00H04R1/10
Inventor 兰雅各布李鸿渊张怀元
Owner MERRY ELECTRONICS (SHENZHEN) CO LTD
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