CN2277147Y

CN2277147Y - Calling device with radio function

Info

Publication number: CN2277147Y
Application number: CN 96214020
Authority: CN
Inventors: 李保良
Original assignee: Arc Technology Co Ltd
Current assignee: Arc Technology Co Ltd
Priority date: 1996-06-27
Filing date: 1996-06-27
Publication date: 1998-03-25
Anticipated expiration: 2006-06-27

Abstract

The utility model relates to a calling device with a radio function, comprising a calling device unit and a radio unit, wherein, the radio unit enables a listen to broadcasting programs through earphones. The calling device unit and the radio unit are respectively provided with a receiving antenna and a receiving circuit. The calling device unit and the radio unit can be operated simultaneously without influencing the receival of calling signals and listening of broadcasting programs.

Description

The calling set of tool radio function

The utility model relates to a kind of calling set of tool radio function, refers to a kind ofly under the calling set operating state especially, and simultaneously the broadcast listening program does not influence the multi-functional calling set that call signal receives.

The current age of a communication technology beyond doubt, being almost every household as interphone possesses, the personal communication devices partly, calling set (containing phone secretary), mobile phone etc. are propagated its belief on a large scale especially, for the calling set that generally is referred to as the BB machine, though occurred the formidable opponent: cellular phone, still very fast-selling on market, its reason is not outer to be:

1. price factor: the price of general calling device is about hundreds of units, mobile phone is then in tens thousand of units, price differential therebetween reaches tens of times distant, for the consumer who payes attention to economic factor, the costliness of mobile telephone equipment itself and call rate really makes it hesitate to move forward, compare to mobile telephone, though the convenience of calling set is slightly inferior, and is cheap, still make ordinary consumer go after like a flock of ducks.

2. custom factor: for the facility of both wishing to obtain in the liaison, wish to have the consumer of telegram in reply autonomy simultaneously again, the selection that calling set is best beyond doubt, different with mobile phone, use calling set can understand call out the back, source initiatively decision whether wire back, this is the main cause that still can stand erect loftily of calling set just.

Yet the calling set of simple function, too stiff regret is also arranged unavoidably, wear general calling set, can only receiving calling signal, in addition, do not possess other auxiliary functions, this is in everything exquisite diversification, multi-functional modern society, can't stimulate more consumption wishes, therefore calling set is under the realistic situation that the mobile phone formidable opponent presses on to the border, and as not increasing additional function, the use value of calling set promptly may not affirmed by the consumer again, so make calling set on function, be tending towards polynary, obviously be trend of the times.

Therefore, main purpose of the present utility model is to provide a kind of calling set of tool radio function, it includes caller unit and broadcast receiver unit, wherein caller unit is to carry out general the reception to exhale collection of letters function, the output of broadcast receiver unit then can be by earphone for user's broadcast listening program, its Unit two has independently reception antenna and receiving circuit respectively, can operate simultaneously and can not influence receiving calling signal and broadcast listening.

The utility model time purpose is to provide a broadcast receiver of being located on the calling set, and this broadcast receiver has the automatic scan channel functions, can select channel by button.

The technical solution of the utility model is to provide a kind of calling set of tool radio function, it includes a caller unit, this caller unit is by a receiving circuit, one radio frequency amplifying circuit, one filter circuit, one mixer, one intermediate frequency filtering circuit, one intermediate frequency amplifier circuit, one demodulation circuit of intermediate frequency, one decoder, compositions such as one central processing unit, wherein mixer is provided with a voltage-controlled oscillator, voltage-controlled oscillator is provided with a phase locking device, central authorities' reason device output is provided with display unit, it is characterized in that: this calling set also includes a broadcast receiver unit, and this broadcast receiver unit includes an antenna-matching circuit, one receiver circuit and an output circuit.

The utility model compared with the prior art advantage and good effect is very obvious.By above technical scheme as can be known, the utility model and is given a radio function simultaneously except that all-channel calling set function can be provided, make the consumer after the communication function that uses calling set, still can enjoy abundant broadcast program with oneself, and make the utility model have practical and not busy function concurrently.

Further specify specific structural features of the present utility model and purpose below in conjunction with accompanying drawing.

Fig. 1 is a calcspar of the present utility model.

Fig. 2 is that the utility model caller unit receives detailed circuit diagram partly.

Fig. 3 is other detailed circuit diagram of the utility model caller unit.(central processing unit and decoder)

Fig. 4 is the detailed circuit diagram of the utility model broadcast receiver unit.

The utility model is realized aforementioned purpose with circuit form, and as shown in Figure 1, it includes a caller unit 10 and a broadcast receiver unit 20, wherein:

This caller unit 10 is made up of demodulator circuit 15, a decoder 16, a central processing unit 30 etc. in a receiving circuit 19, a radio frequency amplifying circuit 11, a filter circuit 12, a mixer 13, an intermediate frequency filtering circuit 14, the intermediate frequency amplifier circuit 140,, wherein mixer 13 is to carry out the smear processing by oscillation signals according and received signal that a voltage-controlled oscillator 17 provides, and voltage-controlled oscillator 17 is provided with a phase locking device 18 again.This phase locking device 18 is to be connected with central processing unit 30, send the data (as FM or AM) of wanting to receive broadcasting channel by central processing unit 30 and give phase locking device 18, control the resonance of voltage oscillation devices 17 again by phase locking device 18, and be locked on this setting contents of channel, and voltage-controlled oscillator 17 is transmitted to receiver circuit 22 in the broadcast receiver unit 20 with resonance signal with wireless mode.Central processing unit 30 outputs are provided with display unit 31, so that the show Calls message.

With foregoing circuit aspect the signal receiving function, mainly be that the signal that utilizes radio frequency amplifying circuit 11 that receiving circuit 19 is received carries out tuning and amplification, after its signal through tuning processing and amplifying is delivered to filter circuit 12 and is carried out filtering, commissure to mixer 13 and the oscillation signals according that voltage-controlled oscillator 17 produces carried out mixing, and produce an intermediate-freuqncy signal, this intermediate-freuqncy signal is successively through intermediate frequency filtering circuit 14, intermediate frequency amplifier circuit 140 and demodulation circuit of intermediate frequency 15 carry out filtering respectively, delivering to decoder 16 after amplification and the demodulation process decodes, and deliver to central processing unit 30 by the decoder 16 back signal of will decoding, this central processing unit 30 promptly the display unit 31 by output with literal or digital show Calls message.

Voltage-controlled oscillator 17 is except that aforementioned functional, the receiving channels that also cooperates phase locking device 18 and central processing unit 10 decision broadcast receiver unit 20, mainly be to send by central processing unit 30 to want the broadcasting channel data that receives to give phase locking device 18 (central processing unit 30 send broadcasting channel data select by button) by the user, control the resonance signal of voltage-controlled oscillators 17 again by phase locking device 18, and be locked on the specific channel of central processing unit 30 settings, and the resonance signal of voltage-controlled oscillator 17 after will setting is transmitted to broadcast receiver unit 20, receives the broadcast program of these channels for broadcast receiver unit 20.At the same time, voltage-controlled oscillator 17 also will send a signal to return central processing unit 30 via the phase locking device and do the channel locking, and will be shown on the display unit 31 by the channel of central processing unit 30 with the year locking.

Broadcast receiver unit 20 is made up of reception match circuit 21, a single-chip receiver circuit 22 and an output circuit 23 etc. again, it mainly is to send into receiver circuit 22 after demodulation audio frequency processing and amplifying by antenna-matching circuit 21 received signals, send by output circuit 23, wherein receiver circuit 22 has and scans function automatically, can scan automatically to select to listen to program channel.

And aforesaid caller unit 10 and broadcast receiver unit 20 will be placed in the same casing, so that calling set and radio function to be provided respectively, can obviously find out by the aforementioned circuit calcspar, this Unit two has independently reception antenna respectively, so do not influence the two signal receiving function separately, in other words, this caller unit 10 and broadcast receiver unit 20 can be carried out function separately simultaneously.

As for its detailed circuit, at first consult shown in Figure 2, it is the reception part of caller unit 10, include a receiving circuit 19, a radio frequency amplifying circuit 11, a filter circuit 12, a mixer 13, an intermediate frequency filtering circuit 14, an intermediate frequency amplifier circuit 140 and a demodulation circuit of intermediate frequency 15 etc., wherein mixer 13 is connected with a voltage-controlled oscillator 17, and voltage-controlled oscillator 17 is provided with a phase locking device 18.

And for example shown in Figure 3, be the decoder 16 and the central processing unit 30 of caller unit 10, this central processing unit 30 is to be connected to display unit (this is not shown in the figures) with output pin SEG9～SEG32, COM1～COM4 through joint 32, exhales the reception breath for demonstration.

Other two output pins D9, the TIMO of central processing unit 30 are connected with a motor drive circuit 33 and a buzzer drive circuit 34 respectively, for producing vibration signal and buzzer respectively, to inform user's caller message.

Central processing unit 30 is to draw location PLL-LE (78 pin) with output pin CO-DATA (77 pin), CO-CK (79 pin) and input to be connected with phase locking device 18 (DATA, CLK and LE pin) respectively.Aforesaid voltage-controlled oscillator 17 is also sent a signal back to via the LE pin of phase locking device 18 and is done the channel locking for central processing unit 30 when the emission resonance signal is given broadcast receiver unit 20, delivers to display unit 31 by central processing unit 30 again and shows.

See also shown in Figure 4 again, it is the detailed circuit diagram of broadcast receiver unit 20, disclosing respectively among the figure has one to receive match circuit 21, a receiver circuit 22 and output circuit 23, be that integrated circuit by code T DA7088T constitutes wherein for the receiver circuit 22 of main composition, its control pin CAP is provided with button 24, what can key mode cooperate that receiver circuit 22 itself possesses scans function automatically, selects the radio station of desiring to listen to program.

Receiver circuit 22 is to be connected with output circuit 23 with output pin VAP, this output circuit 23 mainly is made of a transistor amplifier, in present embodiment, the output of this output circuit 23 is provided with an earphone socket 25, supply to plug earphone, and the user can listen to the program signal of being sent by receiver circuit 22 by earphone.

Claims

1. the calling set of a tool radio function, include a caller unit, this caller unit is by a receiving circuit, one radio frequency amplifying circuit, one filter circuit, one mixer, one intermediate frequency filtering circuit, one intermediate frequency amplifier circuit, one demodulation circuit of intermediate frequency, one decoder, compositions such as one central processing unit, wherein mixer is provided with a voltage-controlled oscillator, voltage-controlled oscillator is provided with a phase locking device, central authorities' reason device output port is provided with display unit again, it is characterized in that: this calling set also includes a broadcast receiver unit, and this broadcast receiver unit includes an antenna-matching circuit, one receiver circuit and an output circuit.

2. the calling set of tool radio function according to claim 1 is characterized in that: this receiver circuit is to be made of the integrated circuit that is numbered TDA7088T.

3. the calling set of tool radio function according to claim 1 is characterized in that: the output circuit output of this broadcast receiver unit is provided with earphone socket, for connecting earphone.