CN2142246Y

CN2142246Y - Sound-control dialing telephone

Info

Publication number: CN2142246Y
Application number: CN 92242940
Authority: CN
Inventors: 曾迎凡
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-07
Filing date: 1992-12-07
Publication date: 1993-09-15
Anticipated expiration: 2002-12-07

Abstract

The utility model discloses a sound-control dialing telephone. In the existing telephone casing, the electric connection structure of the telephone comprises a ringing circuit, a converting device, a directional circuit, a speech circuit, a dialing interface circuit and a silencing control circuit, and then a speech recognition dialing device and a keyboard / display device are added. A microphone is electrically connected with the A/D converting port of an Intel 8098 SCM in the speech recognition dialing device through a pre-amplifier, and a band pass filter, the PWM port of the Inte 18098 SCM is electrically connected with the dialing interface circuit through an integrator, a low pass filter, one switch point of a double-throw switch SW2, the HSO1 port of the Inte 18098 SCM is electrically connected with the dialing interface circuit through the other switch point of the double-throw switch SW2, and the HSO0 port of the Inte 18098 SCM is electrically connected with the silencing control circuit. People can make the telephone automatically dial through speaking the owner's name (or organization name) of pre-stored called numbers (100 numbers at most).

Description

Sound-control dialing telephone

The utility model relates to a kind of telephone device of using speech recognition technology, especially can control the telephone set dialing by voice.

At present, widely used telephone set all dials it by manually pressing (or stirring) telephone number key (or dish), needs a large amount of telephone number of artificial memory like this, need not consult telephone directory book if just remember.In telephone number length ever-increasing today, make the memory number issues more and more outstanding.Have the disabled person of physiological barrier for some, perhaps they can not press (or stirring) telephone number key (or dish).

The purpose of this utility model provides a kind of telephone set, and it can not only dial by dial key control, and can be by voice control dialing (100 numbers commonly used).

The purpose of this utility model is achieved in that in telephone outer shell, and ringing circuit, conversion equipment, directional circuit, speaking circuit, pulse/double frequency change over switch, dialing interface circuit, noise reduction control circuit, speech recognition dialing mechanism, keyboard/display unit are electrically connected.Ringing circuit is made up of high-pass filtering circuit, full bridge rectifier, 8204 application-specific integrated circuit (ASIC)s and piezoelectric ceramic transducer; Conversion equipment is by having a normally closed node and a switch of often opening node is formed; Directional circuit is made up of a rectification full-bridge; Speaking circuit is made up of microphone, audio frequency amplifier, receiver power amplifier, balancing network and receiver; Speech recognition equipment is by microphone, audio frequency preamplifier, band pass filter, the Intel8098 single-chip microcomputer, the speech recognition dial-up program, read only memory ROM, data storage RAM, address buffer, address decoder is formed, wherein speech recognition is carried out following the connection with section dialing in: microphone passes through preamplifier, the A/D conversion port of the Intel8098 single-chip microcomputer in band pass filter and the speech recognition dialing mechanism is electrically connected, the PWM port of Intel8098 single-chip microcomputer passes through integrator, low pass filter, the switching point of double-point double-throw switch SW2 is electrically connected with the dialing interface circuit, the HSO1 port of Intel8098 single-chip microcomputer makes the HSO0 port of Intel8098 single-chip microcomputer be electrically connected with the noise reduction control circuit by another switching point and the dialing interface circuit electrical ties of double-point double-throw switch SW2; Keyboard/display unit is made up of the 8 sections LED or the LCD display of Intel8279 keyboard/display controller, decoder, bit driver, segment driver, 4*4 keyboard and 16 bit lengths.Carry out dial-up operation when using this telephone set earlier, dial mode has two kinds: (1) can directly press the keyboard digital key, judge the also Intel8098 single-chip microcomputer of announcement of key position by Intel8279, send numerical selection pulse or touch-tone signal according to the position of pulse/double frequency change over switch by the Intel8098 single-chip microcomputer; (2) exhale owner's name (this owner's name and telephone number thereof have carried out phonetic memory by the user before use) of certain telephone number by the microphone mouth, this voice signal enters the A/D converter of Intel8098 single-chip microcomputer through audio frequency preamplifier, band pass filter, finish identifying operation and find corresponding telephone number by the speech recognition dial-up program, send numerical selection pulse or touch-tone signal according to the position of pulse/double frequency change over switch by the Intel8098 single-chip microcomputer according to the number district of recognition result in data storage RAM.

After finishing dial-up operation and connecting the other side, just carry out telephone operation by microphone and receiver and the other side.

Owing to adopt such scheme, not only can dial by dial key control, and can be by voice control dialing.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is circuit theory diagrams of the present utility model.

Fig. 2 is the circuit diagram of embodiment.

Fig. 3 is an identification dial-up program flow chart.

The low pass filter 7. double-point double-throw switch 8.Intel8098 single-chip microcomputers 9. electret microphones 10. address buffers 11. address decoders 12. read-only memorys 13. random memory 14.Intel8279 keyboards of the second order active band-pass filter 5. integrators 6. cut-off frequency 2500Hz of 1. noise reduction control circuits, 2. dialing interface circuit, 3. audio frequency preamplifiers, 4.70～5000Hz among the figure/19.16 8 sections LED of display controller 15.4-16 line decoder 16.4*4 keyboard 17.8 segment drivers, 18.16 bit drivers, 20. ringing circuits, 21. directional circuit, 22. electret microphones, 23. audio-frequency amplifiers, 24. balancing networks, 25. receiver power amplifiers, 26.8 Ω loudspeaker receivers, 27. piezoelectric ceramic transducers.

In Fig. 1, electret microphone (9), audio frequency preamplifier (3), band pass filter (4), 43. pins of Intel8098 single-chip microcomputer (8) (A/D passage) are connected in series, 13. pins of Intel8098 single-chip microcomputer (8) (pulse-width modulation output), integrator (5), low pass filter (6) and double-point double-throw switch SW2(7) 1 be connected in series, 4. pins of Intel8098 single-chip microcomputer (8) and double-point double-throw switch SW2(7) 2 be connected, 42. pins of Intel8098 single-chip microcomputer (8) and double-point double-throw switch SW2(7) 4 be connected, 3. pins of Intel8098 single-chip microcomputer (8) are connected with noise reduction control circuit (1), double-point double-throw switch SW2(7) 3 are connected with dialing interface circuit (2), Intel8098 single-chip microcomputer (8) AD0～7, eight inputs of address buffer (10), D0～7 of read-only memory (12), D0～7 of random memory (13), the D0 of Intel8279～7 are connected in parallel, (10) 8 output of address buffer A0～7, A0～7 of read-only memory (12), A0～7 of random memory (13), Intel8279(14) A0 is connected in parallel according to the order of sequence, Intel8098 single-chip microcomputer (8) A8～13, A8～13 of read-only memory (12), A8～13 of random memory (13) are connected in parallel according to the order of sequence, the A14.A15 of Intel8098 single-chip microcomputer (8) is connected to the input of address decoder (11) respectively, the EPROM selecting side of address decoder (11) output is connected to the CS end of read-only memory (12), the RAM selecting side of address decoder (11) output is connected to the CS end of random memory (13), the Intel8279 selecting side of address decoder (11) output is connected to Intel8279(14) the CS end, Intel8279(14) RL0～3 are connected with 4 lines of 4*4 keyboard (16) respectively, Intel8279(14) SL0～3 are connected with 4 decoding inputs of 4-16 line decoder (15) respectively, 16 decoding outputs of 4-16 line decoder (15) are connected with the input of 16 bit drivers (18) respectively, wherein low 4 output is connected with 4 alignments of 4*4 keyboard (16) respectively, Intel8279(14) B0～3 and A0～3 are connected with 8 inputs of 8 segment drivers (17) respectively, 8 outputs of 8 segment drivers (17) are connected with 8 section drive ends of 16 8 n segment display ns (19) respectively, and 16 outputs of 16 bit drivers (18) are connected with 16 position drive ends of 16 8 n segment display ns (19) respectively.

In the embodiment shown in Figure 2, electret microphone (9) is connected to the input of the reverse audio frequency preamplifier of being made up of 9014 triodes and Resistor-Capacitor Unit of high-gain (3), it is the input of the second order active band-pass filter (6) of 70～5000Hz that the output of audio frequency preamplifier (3) is connected to the frequency range of being made up of LM324 calculation amplifier and Resistor-Capacitor Unit, the output of band pass filter (6) is connected to 43. pins (A/D passage) of Intel8098 single-chip microcomputer (8) again, 13. pins of Intel8098 single-chip microcomputer (8) (pulse-width modulation output) are connected to the input of the integrator of being made up of 4049 rp-drives and Resistor-Capacitor Unit (5), the output of integrator (5) is connected to the input that the cut-off frequency of being made up of LM324 operational amplifier and Resistor-Capacitor Unit is the low pass filter (6) of 2500Hz, the output of filter (6) is connected to 1 point of double-point double-throw switch (7), double-point double-throw switch SW2(7) 3 are connected with dialing interface circuit (2), the 32.31.30.29.28.27.26.25. pin of Intel8098 single-chip microcomputer (8), address buffer 74LS373(10) 3.4.7.8.13.14.17.18. pin, read-only memory 27C128(12) 11.12.13.15.16.17.18.19. pin, random memory 62256(13) 11.12.13.15.16.17.18.19. pin, Intel8279(14) 12.13.14.15.16.17.18.19. pin respectively in order correspondence be connected in parallel, address buffer 74LS373(10) 2.5.6.9.12.15.16.19. pin, read-only memory 27C128(12) 10.9.8.7.6.5.4.3. pin, random memory 62256(12) 10.9.8.7.6.5.4.3. pin, Intel8279(14) 21. pins respectively in order correspondence be connected in parallel, the 24.23.22.21.20.19. pin of Intel8098 single-chip microcomputer (8), read-only memory 27C128(12) 25.24.21.23.2.26. pin, random memory 62256(13) 25.24.21.13.2.26. pin respectively in order correspondence be connected in parallel, the 18.17. pin of Intel8098 single-chip microcomputer (8) and the corresponding in order connection respectively of the 3.4. pin of address decoder 74LS138,17. pins and 4049(11 of Intel8098 single-chip microcomputer (8)) 3. pins be connected, 2. pins 4049(11) and random memory 62256(13) 20. pins be connected, 15. pins 74LS138(11) and read-only memory 27C128(12) 20. pins be connected, 74LS138(11) 14. pins and Intel8279(14) 22. pins be connected, 33. pins of Intel8098 single-chip microcomputer (8) and read-only memory 27C128(12) 22. pins, random memory 62256(13) 22. pins, Intel8279(14) 10. pins are connected in parallel, 14. pins of Intel8098 single-chip microcomputer (8) and random memory 62256(13) 27. pins, Intel8279(14) 11. pins are connected in parallel, 34. pins and the 74LS138(11 of Intel8098 single-chip microcomputer (8)) 11. pins, Intel8279(14) 3. pins are connected in parallel, the corresponding in order connection of the capable route selection of R1.R2.R3.R4. of 38.39.1.2. pin Intel8279(14) and 4*4 keyboard, Intel8279(14) 32.33.34.35. pin and 74L154(15) the corresponding in order connection of 23.22.21.20. pin, the corresponding in order connection of 1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16. lead-in wire of 1.2.3.4.5.6.7.8.9.10.11.13.14.15.16.17. pin 74L154(15) and 16 bit drivers (18), the corresponding in order connection of C1.C2.C3.C4. column selection line of 1.2.3.4. pin 74L154(15) and 4*4 keyboard, 16 bit drivers are made up of 16 5K Ω resistance and 16 9012 triodes, the 17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32. of 16 bit drivers (18) lead-in wire and 16 LED(19) the corresponding in order connection of 1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16. position drive end, the corresponding in order connection of 2.4.6.8.11.13.15.17. pin of 31.30.29.28.27.26.25.24. pin Intel8279(14) and 8 segment drivers (17), 8 segment drivers (17) are made up of 74LS244 and 8 170 Ω resistance, the a.b.c.d.e.f.g.dp. of 8 segment drivers (17) end and 16 LED(19) a.b.c.d.e.f.g.dp. hold and be connected.

In identification dial-up program flow process shown in Figure 3, wait for push button signalling earlier, if any actuation of keys, judgement is identification dial key or numerical key, if numerical key then carries out dial-up operation according to pairing number, if the identification dial key then starts A/D converter the voice signal that enters Intel8098 single-chip microcomputer (8) A/D passage is sampled, CZDCZW(zero passage and difference zero passage width are extracted in the sampling edge limit) feature (i.e. the occurrence number of the various zero passage width of statistics speech waveform and voice difference waveform in a period of time), with the feature of voice live part regular by the linear segmented method be the fixed length characteristic vector sequence of 12 frame *, 8 dimensions, form template to be identified, to wait that knowing template carries out matching operation with many templates of having remembered, select optimum Match template number by the distance minimum criteria, find corresponding telephone number according to this number, according to pulse/double frequency switch SW 2(7) the position carry out pulse dialing or carry out DTMF pulsing.

Claims

1, a kind of sound control dial telephone set, in its shell: ringing circuit, conversion equipment, directional circuit, speaking circuit, the dialing interface circuit, the noise reduction control circuit is electrically connected, it is characterized in that: microphone passes through preamplifier, the A/D conversion port of the Inte18098 single-chip microcomputer in band pass filter and the speech recognition dialing mechanism is electrically connected, the PWM port of Inte18098 single-chip microcomputer passes through integrator, low pass filter, the switching point of double-point double-throw switch SW2 is electrically connected with the dialing interface circuit, the HSO1 port of Inte18098 single-chip microcomputer is by another switching point and the dialing interface circuit electrical ties of double-point double-throw switch SW2, and the HSO0 port of Inte18098 single-chip microcomputer is electrically connected with the noise reduction control circuit.

2, sound control dial telephone set according to claim 1, it is characterized in that: adopt 9014 triodes and Resistor-Capacitor Unit to form the reverse audio frequency preamplifier of high-gain, adopting LM324 and Resistor-Capacitor Unit component frequency scope is the second order active band-pass filter of 70～5000Hz, A/D converter adopts the A/D converter of Intel8098 single-chip microcomputer inside, adopt 4049CMOS reverse driven and Resistor-Capacitor Unit to form integrator, adopting LM324 and Resistor-Capacitor Unit to form cut-off frequency is the low pass filter of 2500Hz.