Earphone line control device and earphone

• US 9,532,129 B2
• Filed: 09/24/2014
• Issued: 12/27/2016
• Est. Priority Date: 11/27/2013
• Status: Active Grant

• Current Assignee: 1More Inc.
• Original Assignee: 1More Inc.
• Inventors: Sun, Xiaohong, Hsieh, Kuan-Hong, Lin, Boqing
• Primary Examiner(s): Goins, Davetta W
• Assistant Examiner(s): GANMAVO, KUASSI A
• Application Number:
  US14/402,088
• Publication Number:
  US 20150289049A1
• Time in Patent Office: 825 Days
• Field of Search: 340/661, 340/664, 324/120, 324/508, 324/522
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1632 External expansion units, e.g. docking stations
• CPC Class Codes: G06F 1/305 in the event of power-supply fluctuations
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/325 Power saving in peripheral device
• CPC Class Codes: H03G 3/002 Control of digital or coded signals H03G3/3089 take precedence
• CPC Class Codes: H03G 3/007 Control dependent on the supply voltage
• CPC Class Codes: H04R 1/1041 Mechanical or electronic switches, or control elements switches in general H01H
• CPC Class Codes: H04R 2227/003 Digital PA systems using, e.g. LAN or internet
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 2460/03 Aspects of the reduction of energy consumption in hearing devices
• CPC Class Codes: H04R 27/00 Public address systems circuits for preventing acoustic reaction H04R3/02; circuits for distributing signals to loudspeakers H04R3/12; monitoring or testing arrangements for public address systems H04R29/007; amplifiers H03F
• CPC Class Codes: H04R 29/001 for loudspeakers H04R29/007 takes precedence
• CPC Class Codes: H04R 3/00 Circuits for transducers , loudspeakers or microphones

Abstract

An earphone line control device includes a power supply management unit, a filter unit, a control unit, a first resistance, a first diode, a first switch, a second resistance and a second switch. A first end of the power supply management unit, a first end of the filter unit, an end of the first resistance, and an end of the second resistance are all connected to a power supply; the other end of the first resistance is connected to an anode of the first diode, a cathode of the first diode is connected to an end of the first switch, the other end of the second resistance is connected to an end of the second switch, the other end of the first switch and the other end of the second switch are both connected to ground; a first end and a third end of the control unit are respectively connected to the cathode of the first diode and the other end of the second resistance, a second end of the control unit is connected to ground, a fourth end of the control unit is connected to the other end of the filter unit; a second end of the power supply management unit is connected to ground, a third end of the power supply management unit is connected to the control unit. When the first switch or the second switch is turned off, the control unit outputs a preset coded pulse signal.

Claims

1. An earphone line control device comprising a power supply management unit, a filter unit, a control unit, a first resistance, a first diode, a first switch, a second resistance and a second switch, wherein;

a first end of the power supply management unit, a first end of the filter unit, an end of the first resistance, and an end of the second resistance are all connected to a power supply;

the other end of the first resistance is connected to an anode of the first diode, a cathode of the first diode is connected to an end of the first switch, the other end of the second resistance is connected to an end of the second switch, the other end of the first switch and the other end of the second switch are both connected to ground;

a first end and a third end of the control unit are respectively connected to the cathode of the first diode and the other end of the second resistance, a second end of the control unit is connected to ground, a forth end of the control unit is connected to the other end of the filter unit;

a second end of the power supply management unit is connected to ground, a third end of the power supply management unit is connected to the control unit ;

the first switch corresponds to the first resistance, the second switch corresponds to the second resistance;

when the first switch or the second switch is turned on, the control unit outputs a first preset coded pulse signal, the first resistance or the second resistance divides voltage with an internal circuit of a mobile phone and generates a different voltage value;

when the first switch or the second switch is turned off, the control unit outputs a second preset coded pulse signal.

2. The earphone line control device according to claim 1, wherein when the first switch or the second switch is turned on, the control unit respectively outputs a first preset coded pulse signal with different frequency.

3. The earphone line control device according to claim 1, wherein the earphone line control device further comprises a third switch, an end of the third switch is directly connected to a sixth end of the control unit, the other end of the third switch is connected to ground;

when the third switch is turned on, the control unit outputs a third preset coded audio signal.

4. The earphone line control device according to claim 1, wherein the power supply management unit comprises a second diode and a first capacitance, an anode of the second diode is connected to the power supply, a cathode of the second diode is connected to an end of the first capacitance, the other end of the first capacitance is connected to ground.

5. The earphone line control device according to claim 1, wherein the filter unit comprises a second capacitance connecting in series with a fourth resistance.

6. The earphone line control device according to claim 1, wherein a fourth end of the power supply management unit is connected to the first end of the control unit.

7. The earphone line control device according to claim 6, wherein the earphone line control device further comprises a third switch, an end of the third switch is connected to the sixth end of the control unit, the other end of the third switch is connected to ground;

when the third switch is turned on, the control unit outputs a third preset coded pulse signal.

8. The earphone line control device according to claim 6, wherein the power supply management unit comprises a second diode, a third resistance and a first capacitance, an anode of the second diode is connected to the power supply, a cathode of the second diode is connected to an end of the third resistance and an end of the first capacitance, the other end of the third resistance is connected to the first end of the control unit, the other end of the first capacitance is connected to ground.

9. The earphone line control device according to claim 6, wherein the filter unit comprises a second capacitance connecting in series with a fourth resistance.

10. An earphone comprising an audible unit, an earphone line control device, a plug, and a cable receiving the audible unit, the earphone line control device and the plug, wherein the line control device comprises:

a power supply management unit, a filter unit, a control unit, a first resistance, a first diode, a first switch, a second resistance and a second switch, wherein;

a first end of the power supply management unit, a first end of the filter unit, an end of the first resistance, and an end of the second resistance are all connected to a power supply;

the other end of the first resistance is connected to an anode of the first diode, a cathode of the first diode is connected to an end of the first switch, the other end of the second resistance is connected to an end of the second switch, the other end of the first switch and the other end of the second switch are both connected to ground;

a first end and a third end of the control unit are respectively connected to the cathode of the first diode and the other end of the second resistance, a second end of the control unit is connected to ground, a fourth end of the control unit is connected to the other end of the filter unit;

a second end of the power supply management unit is connected to ground, a third end of the power supply management unit is connected to the control unit ;

the first switch corresponds to the first resistance, the second switch corresponds to the second resistance;

when the first switch or the second switch is turned on, the control unit outputs a first preset coded pulse signal, the first resistance or the second resistance divides voltage with an internal circuit of a mobile phone and generates a different voltage value;

when the first switch or the second switch is turned off, the control unit outputs a second preset coded pulse signal.

11. The earphone according to claim 10, wherein when the first switch or the second switch is turned on, the control unit outputs a first preset coded pulse signal with different frequency.

12. The earphone according to claim 10, wherein the line control device further comprises a third switch, an end of the third switch is directly connected to a sixth end of the control unit, the other end of the third switch is connected to ground;

when the third switch is turned on, the control unit outputs a third preset coded audio signal.

13. The earphone according to claim 10, wherein the power supply management unit comprises a second diode and a first capacitance, an anode of the second diode is connected to the power supply, a cathode of the second diode is connected to an end of the first capacitance, the other end of the first capacitance is connected to ground.

14. The earphone according to claim 10, wherein the filter unit comprises a second capacitance connecting in series with a fourth resistance.

15. The earphone according to claim 10, wherein a fourth end of the power supply management unit is connected to the first end of the control unit.

16. The earphone according to claim 15, wherein the line control device further comprises a third switch, an end of the third switch is connected to the sixth end of the control unit, the other end of the third switch is connected to ground;

when the third switch is turned on, the control unit outputs a third preset coded pulse signal.

17. The earphone according to claim 15, wherein the power supply management unit comprises a second diode, a third resistance and a first capacitance, an anode of the second diode is connected to the power supply, a cathode of the second diode is connected to an end of the third resistance and an end of the first capacitance, the other end of the third resistance is connected to first end of the control unit, the other end of the first capacitance is connected to ground.

18. The earphone according to claim 15, wherein the filter unit comprises a second capacitance connecting in series with a fourth resistance.