CN2733770Y

CN2733770Y - Handset loudspeaker detector

Info

Publication number: CN2733770Y
Application number: CN 200420080637
Authority: CN
Inventors: 陈晨
Original assignee: JIANGSU GAOTONG TECHNOLOGY Co Ltd
Current assignee: JIANGSU GAOTONG TECHNOLOGY Co Ltd
Priority date: 2004-10-29
Filing date: 2004-10-29
Publication date: 2005-10-12
Anticipated expiration: 2014-10-29

Abstract

The utility model relates to a handset loudspeaker detector, belonging to the technical field of communicating detection. The handset loudspeaker detector of the utility model comprises a power circuit, a handset main board circuit and a loudspeaker socket. The ringing output terminal of the handset main board circuit is connected with the loudspeaker socket. At the time of detecting, as long as the testing loudspeaker is inserted on the socket, the power circuit is switched on; after starting up and looking for a melody, the signal of original human songs of the handset main board is outputted into the testing loudspeaker. The electrical signal is converted into sound by the testing loudspeaker. Therefore, the detecting operation can be finished on the same using condition. As a consequence, the loudspeaker which is arranged on the leaving factory handset after detection and selection ensures that the ring of original human songs with pure acoustic fidelity can be sent out.

Description

The mobile phone speaker checkout gear

Technical field

The utility model relates to a kind of Mobile Phone Checkout Gear, and especially a kind of checkout gear of mobile phone speaker belongs to the communication detection technical field.

Background technology

Along with developing rapidly of mobile communication, adopt true man's ring of singing in the real sense as cell phone incoming call generally to accept for vast machine master.Yet, at present as the loud speaker of cell-phone bell device when the exfactory inspection, still adopt traditional loud speaker tester, carry out " pure tone " test or " white noise " scanning.Though these traditional detection methods can detect the product quality of conventional loud speaker effectively, really there is the not enough problem of aimed detection for the small-power loud speaker.Much noise or plosive in use still often appear in the small-power loud speaker that detects by traditional detection method.

Analyze as can be known, the reason that above-mentioned situation occurs is that the user mode of loud speaker is inequality with the preceding traditional detection state that dispatches from the factory.Loud speaker when reality is used driving voltage and frequency change than the test mode complexity before dispatching from the factory.The problem that may occur in the time of therefore can't finding actual use with the traditional detection mode.

Summary of the invention

The technical problems to be solved in the utility model is: at the defective of above prior art existence, a kind of device that can realize conveniently that mobile phone speaker detects is proposed, this device is a testing conditions with actual source of sound, thereby guarantees the pure no noise of small-power loud speaker tonequality by detecting.

In order to solve above technical problem, mobile phone speaker checkout gear of the present utility model comprises power circuit and cell phone mainboard circuit, also comprises the loud speaker socket, the ring output termination loud speaker socket of described cell phone mainboard circuit.

It is also to contain standard loudspeakers and loud speaker change-over circuit to be measured that the utility model further improves, described change-over circuit is made of the bistable circuit by key control, and described loud speaker socket is connected standard loudspeakers or loud speaker to be measured respectively by a relay two contacts of bistable circuit control with the cell phone mainboard circuit.

It is also to contain to seek bent playback circuit automatically that the utility model further improves, describedly seek bent playback circuit automatically and be made of intermittent oscillation generation circuit, the output of described intermittent oscillation generation circuit is opened by the contact of another relay and the M keyed jointing on-off of cell phone mainboard circuit.

It is also to contain automatic boot circuit that the utility model further improves again, and described automatic boot circuit is made of pulse delay circuit, and the output of described pulse delay circuit is connected with the power switch key of cell phone mainboard circuit by the contact of another relay.

During detection, as long as loud speaker to be measured is inserted on the socket, circuit Auto Power On and seek song behind the engaging means power supply, true man's original signal of cell phone mainboard will output to loud speaker to be measured, convert the electrical signal to sound by it, like this, just can be under the situation identical with service condition, finish testing, thereby after having guaranteed to be contained on the mobile phone that dispatches from the factory, can send the pure true man original singer ring of tonequality by the loud speaker that detects screening.When needing,, can realize the comparison of standard loudspeakers and loud speaker to be measured easily, thereby avoid the issuable evaluation error of independent audition by simple switching controls.When the utility model contain Auto Power On, automatically seek bent playback circuit after, obviously, it is more easy that detecting operation becomes, plug loud speaker to be measured after, automatic boot circuit sends signal, replaces by hand by the start key, makes mobile phone power-on; To the pulse signal of M key operation, seek bent and playback automatically, when then seeking bent playback circuit automatically and sending the manual selected songs of simulation for condition has more easily been created in detection.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the schematic block circuit diagram of an embodiment of the utility model.

Fig. 2 is the circuit theory diagrams of Fig. 1 embodiment.

Embodiment

Embodiment one

The mobile phone speaker checkout gear of present embodiment as shown in Figure 1, mainly by power circuit, cell phone mainboard circuit, automatic boot circuit, seek bent playback circuit, standard loudspeakers and loud speaker change-over circuit to be measured automatically and form.Except comprising that the true man original singer produces the circuit, also comprise the responsive audio damping removal circuit that constitutes by filter capacitor in the cell phone mainboard circuit.The true man original singer produces circuit and connect ring output after responsive audio damping is removed circuit, the sensitive frequency that is easy to generate noise or plosive suitably can be strengthened like this, more helps detecting.

The specific implementation circuit is referring to Fig. 2 (the cell phone mainboard circuit does not show), power circuit＜1〉comprise bridge rectifier and 7805 regulator block N3 that D3-D6 forms, to other circuit part power supply.

Automatic boot circuit＜2〉essence for main by CD4060 integrated package N1 and the pulse delay circuit that capacitance resistance ware constituted on every side thereof, the delay pulse signal of N1 is control relay JK2 after 7 pin output to triode T5, the power switch key in this relay contact catcher machine motherboard circuit.When energising detected, N1 the 7th human hair combing waste went out low level delay pulse control signal, and JK2 gets electricly after T5 amplifies, and controls its closing of contact and sends the Auto Power On signal to cell phone mainboard.

Automatically seek bent playback circuit＜3〉essence is for mainly by CD4069 ten tetrad count integration block N2 and the intermittent oscillation signal generating circuit that constitutes of capacitance resistance ware on every side thereof, the intermittent oscillation control signal output ends of N2 drives relay J K1 through triode T2, and this relay contact links to each other with cell phone mainboard circuit M key contact.Therefore behind Auto Power On, and then, N2 the 4th, the 5th human hair combing waste goes out the intermittent oscillation control signal, after T2 amplifies, sends the intermittent pulse signal of the manual selected songs operation of simulation by the M key of JK1 contact in the cell phone mainboard circuit, thereby seeks bent and playback automatically.

Loud speaker and loud speaker change-over circuit to be measured＜4〉essence are the bistable circuit by button AN control.The pay(useful) load of this bistable circuit is relay J K3, and wherein the control of the contact of JK3 comprises that standard loudspeakers YB and loud speaker YD to be measured on the socket connect with the ring output of cell phone mainboard circuit respectively.When detection needs,, can realize the comparison of standard loudspeakers and loud speaker to be measured easily, thereby avoid the issuable evaluation error of independent audition by the AN switching controls.

The mobile phone speaker checkout gear that experiment showed, present embodiment can be implemented under the situation identical with service condition easily, finishes testing, thus the quality of the loud speaker of guaranteeing to dispatch from the factory.

In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.

Claims

1. a mobile phone speaker checkout gear comprises power circuit and cell phone mainboard circuit, it is characterized in that: also comprise the loud speaker socket, the ring output termination loud speaker socket of described cell phone mainboard circuit.

2. according to the described mobile phone speaker checkout gear of claim 1, it is characterized in that: also contain standard loudspeakers and loud speaker change-over circuit to be measured, described change-over circuit is made of the bistable circuit by key control, and described loud speaker socket is connected standard loudspeakers or loud speaker to be measured respectively by a relay two contacts of bistable circuit control with the cell phone mainboard circuit.

3. according to the described mobile phone speaker checkout gear of claim 2, it is characterized in that: also contain and seek bent playback circuit automatically, describedly seek bent playback circuit automatically and be made of intermittent oscillation circuit, the output of described intermittent oscillation generation circuit is opened by the contact of another relay and the M keyed jointing on-off of cell phone mainboard circuit.

4. according to the described mobile phone speaker checkout gear of claim 3, it is characterized in that: also contain automatic boot circuit, described automatic boot circuit is made of pulse delay, and the output of described pulse delay circuit is connected with the power switch key of cell phone mainboard circuit by the contact of another relay.

5. according to the described mobile phone speaker checkout gear of claim 4, it is characterized in that: the true man original singer in the described cell phone mainboard circuit produces circuit and connect ring output after the responsive audio damping that filter capacitor constitutes is removed circuit.