CN1048371C - Mobile telephone having answering and recording functions - Google Patents

Abstract

The present invention relates to a mobile phone having answering and recording functions, which comprises a speech encoding / decoding circuit, a multiplexer connected with the speech encoding / decoding circuit by a first data line, a pulse code modulating / demodulating circuit connected with the multiplexer by a second data line, a microprocessor connected with the multiplexer by a third data line, a memory connected with the microprocessor by a fourth data line, wherein information of the second data line can be stored in the memory by the microprocessor according to a first command of a user; the information in the memory can be sent to a caller by the first data line according to a second command of the user, and the information of the first data line is stored in the memory.

Description

The mobile phone of tool answer phone function

The present invention especially refers to the mobile phone of tool answer phone function about a kind of mobile phone.

Mobile phone (being commonly called as mobile telephone) is universal day by day, but the mobile phone machine that does not have the answer phone function on the market as yet at present.Sometimes, the user in session or when rest is inconvenient to receive calls, and can turn off jingle bell, and open functional circuit of the present invention, the phone of coming in can be recorded, in order to avoid miss important information.

The object of the present invention is to provide a kind of mobile phone of tool answer phone function.

The object of the present invention is achieved like this.

The mobile phone of tool answer phone function provided by the invention comprises:

One audio coding/decoding circuit;

One multiplexed apparatus, it is linked by one first data wire and audio coding/decoding circuit;

One pulse-code modulation/demodulator circuit, it is linked by one second data wire and multiplexed apparatus;

One microprocessor is exported a plurality of multiplexed apparatuses that control signal to, and is linked by one the 3rd data wire and multiplexed apparatus;

One storage arrangement, it is linked by one the 4th data wire and microprocessor;

Wherein, first instruction in response to a user, microprocessor can be stored in storage arrangement with one of second data wire information, second instruction in response to the user, microprocessor can be given a speaker by first data wire with the information in the memory, and one of will come across on first data wire speaker's information storage in storage arrangement.

Now with embodiment in conjunction with the accompanying drawings, the present invention will be described.

Brief Description Of Drawings

Fig. 1 is a functional circuit block diagram of the present invention.

As shown in Figure 1, the present invention comprises radio circuit 11 (RF transmitter/receiver), channel coding/decoding circuit 13 (channel encoder/decoder), audio coding/decoding circuit 15 (voiceencoder/decoder), multiplexer element 17 (multiplexer), pulse-code modulation/demodulator circuit 19 (PCM-pulse coded modulation/demodulation) digital-to-analog, A/D conversion circuit 21 (D/A, A/D), microprocessor 23, identification module 25 (subscriber identity module), memory 27, key device 29, display unit 28.Identification module 25 similar phone credits cards can insert in the different mobile phones and use, and expense is then collected to the account number of this card.

As the people who has the knack of wireless communication technique knows, and radio circuit 11 comprises the function that radio frequency receives and radio frequency transmits; Channel coding/decoding circuit 13 comprises channel coding and channel-decoded function, and the channel coding purpose is being given the ability of signal error corrigendum, and channel-decoded is then done the work of decoding; Audio coding/decoding circuit 15 comprises decoding and encoding function, speech coding system is according to the RPE-LTP method (Regular Pulse Excited-Long Term Prediction) as GSM (Global systemMobile) suggestion, the digital signal 170 of input is made speech coding, and tone decoding is then done opposite action; Pulse-code modulation/demodulator circuit 19 comprises pulse-code modulation (PCM) and pulse code demodulation, G.711, as consulting the instruction committee (CCITT) with the international telegram phone is standard, then the data transfer rate of its output 172 is 64KbS, and as being standard with CCITTG.721, then data transfer rate of its output 172 is 32KbS; Conversion between 21 responsible signal samplings of D/A conversion circuit (sampler) and digital signal, the analog signal; In addition, element 31 is microphone (Mic), and element 32 is loudspeaker (Earphone); Microprocessor 23 is in response to various states in the system, and output control signal 23 1,232,233,234,235,236,237,238,239 is to each relevant elements, with the running of control mobile phone system.

Tool one multiplexer element 17 of the present invention, it can be a data-signal switch or is a splitter (demultiplexer), link with first data signal line 170 and audio coding/decoding circuit 15, link with second data signal line 172 and pulse-code modulation/demodulator circuit 19, link with the 3rd data signal line 171 and microprocessor 23.Multiplexer element 17 is also imported a plurality of control signals 234.

When the user desires to record the information of " request message ", can import the order of recording message earlier, this requirement is after holding wire 291 is informed microprocessor 23, microprocessor 23 can send control signal 234 and remove to control multiplexer element 17, the digital signal of the request message that appears on the secondary signal line 172 is sent on the 3rd holding wire 171, and be not sent on first holding wire 170, after microprocessor 23 is received signal, it is stored in a certain sector address in the memory 27 by the 4th holding wire 230.

When the user set mobile phone in the answer phone pattern, microprocessor sent control signal 234, and set predetermined loud number.When phone is come in, and when surpassing predetermined louds number, microprocessor 23 is connected circuit automatically, and takes out " requiring to leave a message " information from memory 27, sends the speaker to by holding wire 230,171,170,150,130,110.

After the information that finishes " requiring message ", if the other side leaves word, the information of then leaving word then is stored in another sector address of memory 27 by holding wire 110,130,150,170,171,230.And after message interrupts, microprocessor 27 cuts off the circuit of mobile phone.

And when the user imported the order of playing message, 27 of microprocessors took out calling side's message information to memory 27, played back by holding wire 230,171,172,190 and via loudspeaker 32.

If prevent delay (delay) effect that causes by microprocessor, can adopt microprocessor with direct memory access (DMA) control (DMA) function.Memory 27 is if also can go into the message unloading memory in the identification module 25 (subscriber identity module) when not enough.

Claims (1)

1. the mobile phone of a tool answer phone function comprises:

One audio coding/decoding circuit;

One multiplexed apparatus, it is linked by one first data wire and audio coding/decoding circuit;

One pulse-code modulation/demodulator circuit, it is linked by one second data wire and multiplexed apparatus;

One microprocessor is exported a plurality of multiplexed apparatuses that control signal to, and is linked by one the 3rd data wire and multiplexed apparatus;

One storage arrangement, it is linked by one the 4th data wire and microprocessor;

Wherein, first instruction in response to a user, microprocessor can be stored in storage arrangement with one of second data wire information, second instruction in response to the user, microprocessor can be given a speaker by first data wire with the information in the memory, and one of will come across on first data wire speaker's information storage in storage arrangement.

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