GB2221821A - Induction cooker with speech message storage - Google Patents

Abstract

An induction cooker has a speech input unit 50 including a microphone via which a user can leave a message. The message is converted to digital in unit 30 and stored in RAM40 being subsequently converted to analog and outputted to unit 60 including a speaker. This can be used as a speaking warning system since the voice output can be triggered by a particular cooker operating condition, eg high temperature. <IMAGE>

Description

All INDUCTION COOKER BACKGROUND OF THE INVENTION The present invention relates to a cooker. and more particularly to an induction cooker.

ri electromagnetic cooker is getting more and more popular Since it overcomes the problems caused by the poisonous CO gas. the exhaust gas and the smoked pot sottom. all originating from using a gas stove. It is therefore tried by the applicant to diversify such electromagnetic cooker.

SUMMARY 01 THE INVENTION It is therefore an object of the Present invention to provide aii induction cooker capable of leaving therein a message.

It is further an object of the present invention to provide an induction cooker capable of providing a phonetic warning function.

According to the present invention, all induct ion cooker includes an internal circuit for operating the induction cooker, a phonetic input unit inputting therefrom a first phonetic analog signal. a phonetic Processing unit capable of converting the analog signal into a digital signal and of converting the digital signal into a second analog signal being subtantially the same with the first analog signal, a RAM capable of storing therein the digital signal, a phonetic output unit including an amplifying circuit for amplifying the second analog signal and a speaker for reproducing the amplified second analog signal, a voltage stabilizing circuit capable of providing a rated d.c. working voltage for power-supplying the Processing unit and the RAM. and a control device selectively controlling the processing unit in one of inputting and outPutting states.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention may best be understood through the following description with reference to the accompanying drawings, in which: Fig. 1 is a block diagram of a preferred embodiment of an induction cooker according to the present invention; and Fig. 2 is a circuit diagram of an induction cooker in Fig. 1.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to Figs. 1-2, an induction cooker according to the present invention includes an internal circuit 10 for operating the induction cooker, a voltage-stabilizing circuit 20, a phonetic processing unit 30, a memory unit 40, a phonetic input unit 50, a Phonetic output unit GO, a control unit 70, and an operation indicating unit 80.

Internal circuit 10 includes 5 touch control switches SWO-4 and 17 indicating LEDs D1-D17 wherein SW3 and SW4 control the power output of the cooker and totallY have 8 levels differentiated by 140 W between every two adjacent levels and indicated by D1-D8, SN'1 and SW2 control the temr)erature of the cooking medium and also totally have 8 levels differentiated by 200C between every two consecutive levels and indicated by D9-D1G, SWO can switch off the tower supply no matter whether the cooker is cooking under the mode of "power output regulation" or the mode of temperature setting', and D17 is lightened when the cooker is cooking and will be flashing to be attention-calling if there is an abnormal condition, e.g.

the face Panel having too high a temperature or the cooker having a poor dissipation. Internal circuit 10 further includes a transforming and rectifying circuit (not shown) for Providing a d.c. source of 9V.

Voltage stabilizing circuit 20 includes a resistor R1, capacitors C1 & C3, a transistor Q1 and a Zener diode ZD1 for maintaining the d.c. source at the rated working voltage (DC 9V).

Phonetic processing unit 30 is an IC chip bearing a model NO. VTV001 and capable of converting a first analog signal from input unit 50 into a digital signal and of converting the digital signal into a second analog signal being substantially the same with the first analog signal.

emorg unit 40 being a RAM can store therein and be read therefrom the digital signal by processing unit 30.

Phonetic input unit 60 includes a microphone Ml receiving therefrom a phonetic signal and a filtering circuit 51 including resistors R8 & R9 and a caPacitor C9 for filtering off the d.c. signal and inputting therefrom the first a.c. analog signal into phonetic processing unit 30.

Phonetic output unit 50 includes a speaker SP1 for reproducing the second analog signal and a two terminal push-pull amplifying circuit G1 including resistors R2, R3 & R7, capacitors C4 & CS and transistors Q2 & Q3 for amplifying the second analog signal before reproduced.

Control unit 70 includes an input switch SW6 for enabling a voice recording state for the cooker and an output switch SW5 for enabling a voice reproducing state.

Operation indicating unit 80 includes a resistor R11, a caPacitor C10 and an indicating LED D18 and will be lightened if SW5 or SWG is switched on for showing that the processing unit 30 is in working.

When the user wants to leave a message in the cooker, he should switch on SW6 and speak to microphone M1. Thus, the analog signal filtered by filtering circuit 51 will be converted by processing unit 30 into a digital signal to be stored by RAM 40.

When one desires to obtain the message in the cooker.

he should switch ON SW5 which causes that phonetic processing nit 40 reads the digital signal stored in RAM 40 and converts it into a second analog signal amplified bv amplifying circuit 61 to be reproduced by speaker SP1.

If internal circuit 10. processing unit 30 and control unit 70 are electrically connected together, the resent cooker will be capable of being equipped with a phonetic warning system. For example, if one wants the face panel of the cooker not to have a temperature higher than a set one and records a verbal clause of "THE TEMPERATURE 1S TOO HIGH" in RAM 40, an output switch of control unit 70 can be switched on to repeatedly reproduce the verbal clause if the temperature of the cooker is higher than the set one.

Through the above description, it should become readily aPparent to those skilled in the art how and why the present invention can achieve the objects it contemplates.

Claims (6)

1. An induction cooker comprising an internal circuit having touch control switches and indicating LEDs for operating said induction cooker. characterized in that said induct ion cooker further includes: a Phonetic input unit including a microphone and a filtering circuit for inputting therefrom a first Phonetic analog signal; a phonetic processing unit electrically connected to said input unit and capable of converting said analog signal into a digital signal and of converting said digital signal into a second analog signal being substantially the same with said first analog signal; a RAM capable of storing therein said digital signal and electrically connected to said processing unit capable of reading said digital signal from said RAM to be converted into said second analog signal;; a Phonetic output unit electrically connected to said processing unit and including an amplifying circuit for amplifying said second analog signal and a speaker for reproducing said amplified second analog signal; a voltage stabilizing circuit capable of providing a rated d.c. working voltage for power-suPpluing said processing unit and said RAM; and a control device electrically connected to said processing unit for selectively controlling said processing unit in one of inputting and outputting states.

2. An induction cooker as claimed in Claim 1, characteri2ed in that said cooker further includes an operation indicator electrically connected to said processing unit and having at least an indicating LED for indicating a working state of said processing unit.

3. An induction cooker as claimed in Claim 1 or 2, characterized in that said control device includes at least an input switch and at least an output switch.

4. An induction cooker as claimed in anu one of Claims 1-3, characterized in that said processing unit is an IC chip bearing a model o. VTV001.

5. An induction cooker substantially as hereinbefore described with reference to the accomPanYing drawings.

6. An induction cooker comprising: audio input means for receiving an audio input signal constituting a first analog signal, processing means for converting said first analog signal into a digital signal and for converting said digital signal into a second analog signal substantially corresponding to said first analog signal, memory means for receiving said digital signal from said processing means and storing said digital signal therein, and for supplying said digital signal to said processing means for conversion to said second analog signal audio output means for receiving said second analog signal from said Processing means and for Producing an audio output signal in response thereto, and control means for selectively controlling said processing means so as to select either an input state or an output state of said processing means.