CN104113614A - Receiver control circuit and portable electronic device possessing same - Google Patents
Receiver control circuit and portable electronic device possessing same Download PDFInfo
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- CN104113614A CN104113614A CN201310130582.0A CN201310130582A CN104113614A CN 104113614 A CN104113614 A CN 104113614A CN 201310130582 A CN201310130582 A CN 201310130582A CN 104113614 A CN104113614 A CN 104113614A
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- receiver
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- optical inductor
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Abstract
A receiver control circuit comprises a first receiver, a second receiver, a first optical inductor, a second optical inductor and a judging circuit. The first and second receivers are arranged on the portable electronic device at intervals, and the first optical inductor is arranged adjacent to the first receiver, and is used to receive the light rays transmitted to the first receiver. The second optical inductor is arranged adjacent to the second receiver, and is used to receive the light rays transmitted to the second receiver. The judging circuit is used to compare the intensities of the light rays received by the first and second optical inductors, start the first receiver when the intensity of the light rays received by the first optical inductor is less than the intensity of the light rays received by the second optical inductor, and start the second receiver when the intensity of the light rays received by the first optical inductor is greater than the intensity of the light rays received by the second optical inductor. The present invention also relates to the portable electronic device possessing the receiver control circuit.
Description
Technical field
The present invention relates to a kind of control circuit, relate in particular to a kind of receiver control circuit of portable electron device.
Background technology
The current receiver of portable electron device, receiver, generally only has one, and this receiver be arranged between two parties portable electron device display screen directly over.Along with the demand of user to the large-screen of portable electron device, the size of portable electron device is increasing, due to use habit or body structure, when user's right hand grips portable electron device and receives calls, the more close ear of the top right of screen often; And if user's left-handed portable electron device is when receive calls, screen upper left side is more near ear often.If by force the receiver of putting middle setting is aimed to ear, can cause user to operate discomfort.
Summary of the invention
For above-mentioned the deficiencies in the prior art, be necessary to provide a kind of receiver control circuit being user-friendly to.
In addition, be also necessary to provide a kind of portable electron device with described receiver control circuit.
A kind of receiver control circuit, be applied to a portable electron device, described receiver control circuit comprises the first receiver, the second receiver, the first optical inductor, the second optical inductor and decision circuitry, and described the first receiver and the second receiver are arranged at intervals on portable electron device; Described the first optical inductor is in abutting connection with described the first receiver setting, for receiving the light that is sent to described the first receiver; Described the second optical inductor is in abutting connection with described the second receiver setting, for receiving the light that is sent to described the second receiver; Described decision circuitry is electrically connected to described the first receiver, the second receiver, the first optical inductor and the second optical inductor, the size of the light intensity that described decision circuitry receives for more described the first optical inductor and the second optical inductor, and the light intensity receiving at described the first optical inductor starts the first receiver while being less than the light intensity that the second optical inductor receives, the light intensity receiving at described the first optical inductor starts the second receiver while being greater than the second optical inductor.
A portable electron device, comprises housing, spaced apart the first phonate hole and the second sound hole, place of being provided with on described housing, and described portable electron device also comprises above-mentioned receiver control circuit, described the first receiver is established with the first phonate hole and is aimed at; Described the second receiver is aimed at the second phonate hole.
Described receiver control circuit is owing to being provided with two receivers, and no matter can make user is left hand or the right hand while gripping portable electron device, all can Energy and comfort ear is labelled to one of them receiver received audio signal.And, by the first optical inductor induction, be sent to the light intensity of the first receiver, the second optical inductor induction is sent to the light intensity of the second receiver, and the light intensity receiving according to the first optical inductor and the second optical inductor by decision circuitry size is controlled the first corresponding receiver and the startup of the second receiver, the receiver that startup that can be correct is covered by user's ear.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the portable electron device of better embodiment of the present invention.
Fig. 2 is the circuit diagram of the receiver control circuit of first embodiment of the invention.
Fig. 3 is the schematic diagram of the receiver control circuit of second embodiment of the invention.
Main element symbol description
| Portable electron device | 100 |
| Receiver control circuit | 10、30 |
| Housing | 20 |
| The first phonate hole | 21 |
| The second phonate hole | 22 |
| Display screen | 23 |
| The first receiver | 11 |
| The second receiver | 12 |
| Decision circuitry | 13 |
| The first photo resistance | R1 |
| The second photo resistance | R2 |
| The first divider resistance | R3 |
| The second divider resistance | R4 |
| The first resistance | R5 |
| The second resistance | R6 |
| The 3rd divider resistance | R7 |
| The 4th divider resistance | R8 |
| The first comparator | U1 |
| The second comparator | U2 |
| The first audio frequency amplifier | U3 |
| The second audio frequency amplifier | U4 |
| Audio frequency pio chip | U5 |
| Power supply | VCC |
| The first voltage signal | V1 |
| Second voltage signal | V2 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, the receiver control circuit of better embodiment of the present invention is applied in a portable electron device 100.Portable electron device 100 can be for mobile phone, have receiver, i.e. panel computer of receiver etc.Portable electron device 100 comprises housing 20.Spaced apart the first phonate hole 21 and the second phonate hole 22 of being provided with on housing 20.One display screen 23 is also set on housing 20.In the present embodiment, the first phonate hole 21 and the second phonate hole 22 arrange the top of display screen 23.For example, when display screen 23 is faced user, the first phonate hole 21 is positioned at the upper left side of display screen 23; The second phonate hole 22 is positioned at the upper right side of display screen.
Refer to Fig. 2, the receiver control circuit 10 of first embodiment of the invention comprises the first receiver 11, the second receiver 12, the first OPTICAL SENSORS, the second OPTICAL SENSORS and decision circuitry 13.The first receiver 11 and the second receiver 12 are arranged at intervals on the housing 20 of portable electron device 100, and the first receiver 11 is aimed at the first phonate hole 21 settings; The second receiver 12 is aimed at the second phonate hole 22 and is arranged.In the present embodiment, the first OPTICAL SENSORS is the first photo resistance R1; The second OPTICAL SENSORS is the second photo resistance R2.The first photo resistance R1 arranges in abutting connection with the first receiver 11, and can receive extraneous light by mesh (not shown) and first phonate hole 21 of the first receiver 11; The second photo resistance R2 arranges in abutting connection with the second receiver 12, and can receive extraneous light by mesh (not shown) and second phonate hole 22 of the second receiver 12.
Decision circuitry 13 is electrically connected to the first receiver 11, the second receiver 12, the first photo resistance R1 and the second photo resistance R2.Decision circuitry 13 is for the size of the light intensity that relatively the first photo resistance R1 and the second photo resistance R2 receive, and the light intensity receiving at the first photo resistance R1 starts the first receiver 11 while being less than the light intensity that the second photo resistance R2 receives, the light intensity receiving at the first photo resistance R1 starts the second receiver 12 while being greater than the second photo resistance R2.
Particularly, decision circuitry 13 comprises first signal change-over circuit, secondary signal change-over circuit, the first comparator U1, the second comparator U2, the first audio frequency amplifier U3, the second audio frequency amplifier U4, audio frequency pio chip U5 and power supply VCC.First signal change-over circuit is converted to the first voltage signal V1 and exports this first voltage signal V1 for the light signal that coordinates the first photo resistance R1 that the first photo resistance R1 is sensed; Secondary signal conversion is converted to second voltage signal V2 and exports this second voltage signal V2 for the light signal that coordinates the second photo resistance R2 that the second photo resistance R2 is sensed.In the present embodiment, first signal change-over circuit comprises the first divider resistance R3, and secondary signal change-over circuit comprises the second divider resistance R4.
First divider resistance R3 one end is electrically connected to power supply VCC, and the other end is by the first photo resistance R1 ground connection.Second divider resistance R4 one end is electrically connected to power supply VCC, and the other end is by the second photo resistance R2 ground connection.Node between the first divider resistance R3 and the first photo resistance R1 is electrically connected to the in-phase input end of the first comparator U1 and the inverting input of the second comparator U2; Node between the second divider resistance R4 and the second photo resistance R2 is electrically connected to the inverting input of the first comparator U1 and the in-phase input end of the second comparator U2.The output of the first comparator U1 is electrically connected to the power end of the first audio frequency amplifier U3 by one first resistance R 5; The output of the second comparator U2 is electrically connected to the power end of the second audio frequency amplifier U4 by one second resistance R 6.The input of the first audio frequency amplifier U3 is electrically connected to audio frequency pio chip U5, and output is electrically connected to the first receiver 11.The input of the second audio frequency amplifier U4 is electrically connected to audio frequency pio chip U5, and output is electrically connected to the second receiver 12.Audio frequency pio chip U5 is for output audio signal, and described audio signal exports the first receiver 11 to after amplifying by the first audio frequency amplifier U3, or exports the second receiver 12 to after amplifying by the second audio frequency amplifier U4.
In the present embodiment, the first photo resistance R1 and the second photo resistance R2 have negative photoresistance characteristic, that is, when the light intensity on being irradiated to the first photo resistance R1 increases, the resistance of the first photo resistance R1 reduces; Otherwise the resistance of the first photo resistance R1 increases.The second photo resistance R2 has negative photoresistance characteristic equally.The first divider resistance R3 is identical with the resistance of the second divider resistance R4.
Described portable electron device 100 in use, if the light intensity that the first photo resistance R1 receives is less than the light intensity that the second photo resistance R2 receives, for example, when user's left-handed portable electron device 100 is conversed, the first receiver 11 is easily covered and shield lights by the left ear of user, and the light intensity that now the first photo resistance R1 of corresponding the first receiver 11 receives is less than the light intensity of the second photo resistance R2 reception of not covered the second receiver 12 correspondences.Because the first photo resistance R1 and the second photo resistance R2 have negative photoresistance characteristic, now the resistance of the first photo resistance R1 is greater than the resistance of the second photo resistance R2, for the first comparator U1, the first voltage signal V1 of its in-phase input end is greater than the second voltage signal V2 of its inverting input, the first comparator U1 output high level (as 5V voltage) is to the power end of the first audio frequency amplifier U3, after driving the first audio frequency amplifier U3 that the audio signal of audio frequency pio chip U5 output is amplified, export the first receiver 11 to, thereby start the first receiver 11 work.Simultaneously for the second comparator U2, the second voltage signal V2 of its in-phase input end is less than the first voltage signal V1 of its inverting input, the second comparator U2 output low level (as 0V voltage) is to the power end of the second audio frequency amplifier U4, the second audio frequency amplifier U4 cannot be worked, thereby close the second receiver 12.
If the light intensity that the first photo resistance R1 receives is greater than the light intensity that the second photo resistance R2 receives, for example, when user's right hand gripping portable electron device 100 is conversed, the second receiver 12 is easily covered and shield lights by user's auris dextra, the light intensity that now the second photo resistance R2 of corresponding the second receiver 12 receives is less than the light intensity that the first photo resistance R1 receives, make the resistance of the first photo resistance R1 be less than the resistance of the second photo resistance R2, for the first comparator U1, the first voltage signal V1 of its in-phase input end is less than the second voltage signal V2 of its inverting input, the power end of the first comparator U1 output low level to the first audio frequency amplifier U3, the first audio frequency amplifier U3 cannot be worked, thereby close the first receiver 11.Simultaneously for the second comparator U2, the second voltage signal V2 of its in-phase input end is greater than the first voltage signal V1 of its inverting input, the power end of the second comparator U2 output high level to the second audio frequency amplifier U4, after driving the second audio frequency amplifier U4 that the audio signal of audio frequency pio chip U5 output is amplified, export the second receiver 12 to, thereby start the second receiver 12 work.
Refer to Fig. 3, Figure 3 shows that the receiver control circuit 30 of second embodiment of the invention.Receiver control circuit 30 has the components and parts roughly the same to the receiver control circuit 10 of the first execution mode and similar operation principle roughly, difference is only: the first signal change-over circuit of receiver control circuit 30 comprises the 3rd divider resistance R7, and secondary signal change-over circuit comprises the 4th divider resistance R8.The 3rd divider resistance R7 one end is electrically connected to described power supply VCC by the first photo resistance R1, other end ground connection, and the node between the 3rd divider resistance R7 and the first photo resistance R1 is by being electrically connected to the inverting input of the first comparator U1 and the in-phase input end of the second comparator U2.The 4th divider resistance R8 one end is electrically connected to described power supply VCC by the second photo resistance R2, other end ground connection, and the node between the 4th divider resistance R8 and the second photo resistance R2 is electrically connected to the in-phase input end of the first comparator U1 and the inverting input of the second comparator U2.In the present embodiment, the 3rd divider resistance R7 has identical resistance equally with the 4th divider resistance R8.
During use, if the light intensity that the first photo resistance R1 receives is less than the light intensity that the second photo resistance R2 receives, now the resistance of the first photo resistance R1 is greater than the resistance of the second photo resistance R2, the first voltage signal V1 of the node output between the first photo resistance R1 and the 3rd divider resistance R7 is less than the second voltage signal V2 of the node output between the second photo resistance R2 and the 4th divider resistance R8, the first comparator U1 exports high level and starts the first audio frequency amplifier U3 and the first receiver 11, the second comparator U2 output low level and close the second audio frequency amplifier U4 and the second receiver 12 simultaneously.
If the light intensity that the first photo resistance R1 receives is greater than the light intensity that the second photo resistance R2 receives, now the resistance of the first photo resistance R1 is less than the resistance of the second photo resistance R2, the first voltage signal V1 of the node output between the first photo resistance R1 and the 3rd divider resistance R7 is greater than the second voltage signal V2 of the node output between the second photo resistance R2 and the 4th divider resistance R8, the first comparator U1 output low level and close the first audio frequency amplifier U3 and the first receiver 11, the second comparator U2 exports high level and starts the second audio frequency amplifier U4 and the second receiver 12 simultaneously.
Described receiver control circuit is owing to being provided with two receivers, and no matter can make user is left hand or the right hand while gripping portable electron device 100, all can Energy and comfort ear is labelled to one of them receiver received audio signal.And, by the first optical inductor induction, be sent to the light intensity of the first receiver 11, the second optical inductor induction is sent to the light intensity of the second receiver 12, and the light intensity receiving according to the first optical inductor and the second optical inductor by decision circuitry 13 size is controlled the first corresponding receiver 11 and the startup of the second receiver 12, the receiver that startup that can be correct is covered by user's ear.
Claims (10)
1. a receiver control circuit, be applied to a portable electron device, it is characterized in that: described receiver control circuit comprises the first receiver, the second receiver, the first optical inductor, the second optical inductor and decision circuitry, described the first receiver and the second receiver are arranged at intervals on portable electron device; Described the first optical inductor is in abutting connection with described the first receiver setting, for receiving the light that is sent to described the first receiver; Described the second optical inductor is in abutting connection with described the second receiver setting, for receiving the light that is sent to described the second receiver; Described decision circuitry is electrically connected to described the first receiver, the second receiver, the first optical inductor and the second optical inductor, the size of the light intensity that described decision circuitry receives for more described the first optical inductor and the second optical inductor, and the light intensity receiving at described the first optical inductor starts the first receiver while being less than the light intensity that the second optical inductor receives, the light intensity receiving at described the first optical inductor starts the second receiver while being greater than the second optical inductor.
2. receiver control circuit as claimed in claim 1, is characterized in that: described decision circuitry also for closing the second receiver when starting the first receiver; And close the first receiver when starting the second receiver.
3. receiver control circuit as claimed in claim 1, is characterized in that: described the first optical inductor is the first photo resistance; Described the second optical inductor is the second photo resistance.
4. receiver control circuit as claimed in claim 3, it is characterized in that: described decision circuitry comprises first signal change-over circuit, secondary signal change-over circuit, the first comparator, the first audio frequency amplifier and audio frequency pio chip, described the first audio frequency amplifier input is electrically connected to described audio frequency pio chip, and the output of described the first audio frequency amplifier is electrically connected to described the first receiver; The output of described the first comparator is electrically connected to the power end of described the first audio frequency amplifier; Described first signal change-over circuit is converted to for the light signal that described the first photo resistance is sensed one of them input that the first voltage signal exports described the first comparator to; Described secondary signal change-over circuit is converted to for the light signal that described the second photo resistance is sensed another input that second voltage signal exports described the first comparator to.
5. receiver control circuit as claimed in claim 4, it is characterized in that: described decision circuitry also comprises the second comparator and the second audio frequency amplifier, one of them input of described the second comparator is electrically connected to the output of described first signal change-over circuit to receive described the first voltage signal, another input is electrically connected to the output of described secondary signal change-over circuit to receive described second voltage signal, and output is electrically connected to the power end of described the second audio frequency amplifier; The input of described audio frequency amplifier is electrically connected to described audio frequency pio chip with from described audio frequency pio chip received audio signal, and output is electrically connected to described audio signal after described the second receiver amplifies with output to described the second receiver.
6. receiver control circuit as claimed in claim 5, it is characterized in that: described decision circuitry also comprises power supply, described first signal change-over circuit comprises the first divider resistance, one end of described the first divider resistance is electrically connected to described power supply, the other end is by described the first photo resistance ground connection, and the node between described the first divider resistance and described the first photo resistance is electrically connected to the in-phase input end of described the first comparator and the inverting input of the second comparator; Described secondary signal change-over circuit comprises the second divider resistance, one end of described the second divider resistance is electrically connected to described power supply, the other end is by described the second photo resistance ground connection, and the node between described the second divider resistance and the second photo resistance is electrically connected to the inverting input of described the first comparator and the in-phase input end of the second comparator.
7. receiver control circuit as claimed in claim 5, it is characterized in that: described decision circuitry also comprises power supply, described first signal change-over circuit comprises the 3rd divider resistance, one end of described the 3rd divider resistance is electrically connected to described power supply by described the first photo resistance, other end ground connection, the node between described the 3rd divider resistance and described the first photo resistance is electrically connected to the inverting input of described the first comparator and the in-phase input end of the second comparator; Described secondary signal change-over circuit comprises the 4th divider resistance, one end of described the 4th divider resistance is electrically connected to described power supply by described the second photo resistance, other end ground connection, the node between described the 4th divider resistance and the second photo resistance is electrically connected to the in-phase input end of described the first comparator and the inverting input of the second comparator.
8. receiver control circuit as claimed in claim 6, is characterized in that: described the first divider resistance is identical with the resistance of the second divider resistance.
9. receiver control circuit as claimed in claim 7, is characterized in that: described the 3rd divider resistance is identical with the resistance of the 4th divider resistance.
10. a portable electron device, comprise housing, spaced apart the first phonate hole and the second sound hole, place of being provided with on described housing, it is characterized in that: described portable electron device also comprises the receiver control circuit as described in claim 1-9 any one, and described the first receiver is established with the first phonate hole and aimed at; Described the second receiver is aimed at the second phonate hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310130582.0A CN104113614A (en) | 2013-04-16 | 2013-04-16 | Receiver control circuit and portable electronic device possessing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310130582.0A CN104113614A (en) | 2013-04-16 | 2013-04-16 | Receiver control circuit and portable electronic device possessing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104113614A true CN104113614A (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310130582.0A Pending CN104113614A (en) | 2013-04-16 | 2013-04-16 | Receiver control circuit and portable electronic device possessing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104113614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951582A (en) * | 2019-02-28 | 2019-06-28 | 维沃移动通信有限公司 | A kind of mobile terminal and sound output control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100048246A1 (en) * | 2008-08-20 | 2010-02-25 | Ming Yin | Mobile communication apparatus and audio switching method |
| CN102959930A (en) * | 2010-12-27 | 2013-03-06 | 罗姆股份有限公司 | Mobile telephone |
-
2013
- 2013-04-16 CN CN201310130582.0A patent/CN104113614A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100048246A1 (en) * | 2008-08-20 | 2010-02-25 | Ming Yin | Mobile communication apparatus and audio switching method |
| CN102959930A (en) * | 2010-12-27 | 2013-03-06 | 罗姆股份有限公司 | Mobile telephone |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951582A (en) * | 2019-02-28 | 2019-06-28 | 维沃移动通信有限公司 | A kind of mobile terminal and sound output control method |
| WO2020173396A1 (en) * | 2019-02-28 | 2020-09-03 | 维沃移动通信有限公司 | Mobile terminal and sound output control method |
| CN109951582B (en) * | 2019-02-28 | 2021-02-19 | 维沃移动通信有限公司 | Mobile terminal and sound output control method |
| JP2022522208A (en) * | 2019-02-28 | 2022-04-14 | 維沃移動通信有限公司 | Mobile terminal and voice output control method |
| JP7271699B2 (en) | 2019-02-28 | 2023-05-11 | 維沃移動通信有限公司 | Mobile terminal and voice output control method |
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Application publication date: 20141022 |