JPH04196740A - Subminiature portable telephone set using dtmf receiver and voice synthesizer - Google Patents

Abstract

PURPOSE:To record a telephone number and its arrival time of a caller in an optional language in the absence state with simple constitution and a small mount space by integrating a hardware corresponding to a basic function into an integrated circuit entirely and integrating an integrated DTMF receiver and voice synthesizer to the integrated circuit. CONSTITUTION:A call from an opposite party is received and inputted from a reception audio terminal of a base band LSI 4 via an interface line 1, the base band LSI 4 converts the signal into a digital signal and the result is transferred to a custom standard cell 3 and a CPU 2 and a control signal is sent to a voice synthesizer 6. Then a message or a peep tone is selected and sent from an AOUT terminal of the voice synthesizer 6 to a transmission audio terminal of the base band LSI 4 as an analog signal. The message is sent to the opposite party. Thus, when a phone call comes during absence, an absence message is sent to the caller and the telephone number and its arrival time of the caller are recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a micro mobile phone device that utilizes an analog cellular system based on the AMDS/TAC3 system and uses a DTMF receiver and a voice synthesizer.

Conventional technology Conventionally, this type of car phone has been an extension of the basic functions of a telephone such as making and receiving calls, and also has DTMF (Dual
Tone 1ultifrequency Sig
(Naling) receivers have been used in base stations, but when combined with automatic telephone equipment, they are known as so-called pocketable ultra-compact mobile phones that are suitable for business and private use.

Problems to be Solved by the Invention However, in the conventional mobile phone device described above, due to mounting space, a hand belt type device could only be realized in the form of a hardware configuration that only functions as a car phone. However, with recent advances in semiconductor technology, only the basic functions of a car phone are integrated into an IC to save mounting space, and there is also a DTMF receiver and voice (VOICE)
By using dedicated ICs such as synthesizers, it has become possible to enhance functions other than the basic functions of a car phone.

The present invention solves these conventional problems,
By incorporating an IC-based DTMF receiver and voice synthesizer into a conventional mobile phone device, we have made it possible to send an answering message when a call comes in while you are away, and to record the number and time of the call. D
The object of the present invention is to provide an ultra-small portable A8-talk device using a TMF receiver and a voice synthesizer.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a radio device that transmits and receives communication data to and from a partner, and a radio device that controls the transmission and reception of communication data of this radio device and processes the received data. The control unit controls the interface line means for interfacing various signals with the Jingji Eagle line machine, and the functions of the device as a telephone device including the analog cellular function. A main control means, a digital signal processing means for executing digital signal processing as analog cellular and notifying the main control means of the processing results, and converting an interface signal between the radio device from an analog to a digital signal according to the cellular method, or Conversion processing separation and combination means that performs reverse conversion processing and separates and combines control signals and audio signals with the base station, the conversion processing separation and combination means having a built-in DTMF generator, and the conversion processing separation and combination means from the other party. a DTMF receiver means for converting the DTMF signal sent via the digital code into a digital code for each frequency, performing a DTMF receiver function according to the digital code, and sending this to the main control means;
The apparatus is composed of an F generator and a voice synthesizer means for transmitting an artificial voice message to the other station through the conversion processing separation/coupling means and a radio, and further includes a Wi source section for supplying power to the entire apparatus.

Effects The present invention has the following effects due to the above structure. In other words, when a mobile phone user sets this function, when the user is away or does not want to answer the phone, and the other party calls, the voice synthesizer will first operate and, for example, send the phone number because the user is away. A message will be sent to the effect that it is desired. Next, the configuration of an embodiment of a micro portable telephone device using a backup voice synthesizer is shown, in which telephone number information sent from the other party is decoded from a voice signal into a dial number (digital value) using a DTMF receiver. It is. In the figure, the component radio device is omitted. In the figure, 1 is an interface line as an interface line means for exchanging signals with a radio device (not shown), 2 is connected to this interface,
It is the heart of this control unit, and is the main unit that executes analog cellular processing functions, functions other than phone functions (such as functions as an electronic organizer), and processing functions of each key (keys necessary for a telephone or an electronic organizer). CPU as control means (M37
702), 3 is interface line 1 and CPU 2
is connected to, mainly performs digital signal processing as analog cellular, and notifies only the processing results to CPU2.
Or a custom standard cell (MN73050LDD) consisting of a custom LSI as a digital signal processing means for controlling a radio device (not shown) based on the result, 4
is connected to interface line 1 and CPU2,
It has a built-in BTMF generator (described later), and processes interface signals with radio equipment (not shown) from analog signals to digital signals, or vice versa, according to the cellular method, and also processes control signals and audio signals with base stations (not shown). A baseband LSI (UUJ B
B29A), 5 is connected to the custom standard cell 3 and the baseband LSI 4, and the baseband LSI
The DTMF receiver functions as a DTMF receiver means to convert the DTMF signal sent from the other station through the reception audio terminal (not shown) of 4 into a digital code for each frequency (DTMF receiver function) and send it to the CPU 2 in units of 3 bits. , 6 are similarly connected to the custom standard cell 3 and the baseband LSI 4, and the message (DTMF
A message or a beep sound is selected by the control signal from the 8-bit parallel port, and this is output as an analog signal from the AOUT terminal of the voice synthesizer 6, and is sent to the baseband LSI 4 for transmission audio. A voice synthesizer 7 is connected to the above-mentioned elements, and is a voice synthesizer means for transmitting a voice through a radio device (not shown) by manually inputting it to a terminal.
This is a custom power supply unit 1c that combines a D display part, an operation part, each LSI, and each regulator for the radio device into one.

FIG. 2 is a circuit diagram showing details of the DTMF receiver 5 and voice synthesizer 6 of FIG. 1.

Next, the operation of the above embodiment will be explained.

FIG. 3 is a flowchart showing the operation of the above embodiment.

In the above embodiment, the voice synthesizer 6 and the DTM
The F receiver 5 is set in the device (step 1).

Next, turn on the custom power 1c7 and turn on the voice synthesizer 6 and DTMF receiver 5 (step 2)
.

A call from the other party is received through a radio (not shown), and is transmitted to the baseband LS via interface line 1.
It is input from the receiving audio terminal of I4 shown in FIG. 2. The baseband LS I4 converts this into a digital signal, transfers it to the custom standard cell 3 and CPLT2, and sends a control signal to the audio synthesizer 6. As a result, the voice synthesizer 6 operates, and the baseband L
As shown in FIG. 2, messages from the DTMF generator built in the SI 4 are selected as messages or beeps by control signals from the 8-bit parallel port, and are transmitted from the AOUT terminal of the audio synthesizer 6 to the baseband LSI 4. is sent as an analog signal to the transmission audio terminal. The baseband LSI 4 transmits this message to the other party through the interface line 1 and a radio (not shown) (step 4). As a result, a DTMF signal containing telephone number information is transmitted from the other party, and this signal is input to the baseband LSI 4 through its receiving audio terminal (not shown) via a radio device (not shown) and an interface line 1. Baseband LSI4 is
The DTMF receiver function converts this [)TMF signal into a digital code for each frequency, and transfers it to the CPU 2 in units of 3 bits for processing. Further, in combination with the clock function of the device, the time when the call was received is detected and stored (step 5).

Note that the DTMF signal is a low group (697,770°852.
941Hz) and high group (1209, 1336, 1477
Hz), and the DTMF frequencies are given as shown in Table 1 below.

Table 1 Finally, the power from the custom power IC 7 is turned off, or the voice synthesizer 6 and DTMF receiver 5 are removed from the set to complete the process (step 6).

Note that when the DTMF receiver 5 and the voice synthesizer 6 are not needed, their WitA is turned off and the battery of the mobile phone device (for example, a 4.8V nickel metal hydride battery) is used.
) is controlled on/off using each LSI port.

Note that although an analog cellular system was used in the above embodiment, it is also possible to apply the system to a digital cellular system, and the same effects can be obtained.

Effects of the Invention As is clear from the above embodiments, the present invention is capable of implementing all the hardware corresponding to the basic functions of a conventional automatic main telephone.
By incorporating a DTMF receiver and a voice synthesizer made into an IC into the C, it has a simple configuration and a small mounting space, and has the advantage of being able to record the time of incoming call of the other party's telephone number 2 in any language when the person is away.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram of a micro mobile phone device using a DTMF receiver and a voice synthesizer according to an embodiment of the present invention, and FIG. 2 is a circuit diagram showing details of the DTMF receiver and voice synthesizer of FIG. FIG. 3 is a flowchart showing the operation of the above embodiment. 1...Interface line, 2...CPU, 3.
...Standard cell LSI, 4...Baseband L
SI, 5...DTMF receiver, 6...Voice synthesizer, 7...Custom power IC0 Name of agent: Patent attorney Akira Koyaharu and 2 others Figure 6

Claims (1)

[Claims] A radio device that transmits and receives communication data to and from a partner station, and a control section that controls the transmission and reception of communication data of this radio device and processes the received data, and this control section is configured to transmit and receive communication data between the radio device and the other station. an interface line means for interfacing various signals of the device; a main control means for controlling the functions of the device as a telephone device including analog cellular system functions; A digital signal processing means for notifying the control means, and a conversion process for converting the interface signal with the radio device from analog to digital signal or vice versa according to the cellular method, and separating and combining the control signal and audio signal with the base station. A processing separation/coupling means, the DT
a conversion processing separation/coupling means having a built-in MF generator;
DTMF receiver means that converts the DTMF signal sent from the other party via the conversion processing separation and coupling means into digital codes for each frequency, executes a DTMF receiver function in accordance with the digital code, and sends this to the main control means; ,
It is comprised of a voice synthesizer means for transmitting an artificial voice message together with the built-in DTMF generator to the other station through the conversion processing separation and coupling means and the radio,
The DTM is further equipped with a power supply unit that supplies power to the entire device.
An ultra-small mobile phone device using an F receiver and a voice synthesizer.