Voice-generating telephone set without external power supply
First Claim
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1. A voice-generating telephone set, said voice-generating telephone set powered by telephone line power only, comprising:
- a dialing unit containing means for receiving keying signals from a dialing keyboard, means for sending out a pulse signal or a DTMF (dual-tone multi-frequency) signal, and a memory means for storing at least a number that has been dialed from said dialing keyboard, an XMUTE signal, a PO signal, and a DTMF signal corresponding to said dialed number, wherein when said PO signal is high, said dialing unit will not send out said pulse signal or said DTMF signal, thus maintaining an electric current loop between said said telephone set and a telephone switchboard in an off-hook state;
said dialing keyboard including a plurality of keys and a keyboard circuitry such that, when one of said keys is pressed, said dialing unit is triggered to store in said memory means data corresponding to said key being pressed, and, at the same time, a control unit is triggered to generate and send a control signal to a voice-generating circuit;
an encoder for receiving output from said dialing unit and said dialing keyboard, and encoding a keying signal into a multiple-bit binary value, which is then transmitted to said voice-generating circuit;
said control unit comprising input means for receiving said keying signal from said dialing keyboard, and output means for triggering said voice-generating circuit to pronounce said multiple-bit binary value, said control unit further comprising means to send a PO signal to said dialing unit when a handset is lifted off hook, so as to maintain said PO signal at high such that said dialing unit will not send out said pulse signal or said DTMF signal, thus maintaining an electric current loop between said said telephone set and said telephone switchboard in said off-hook state;
a SND key in said dialing keyboard for, when it is being pressed, triggering said dialing unit to send one or more DTMF signals corresponding to said dialed number.whereby when the handset is lifted from the hook, said control circuit send said PO signal to said dialing unit to hold off the sending of pulse or DTMF signals, thus allowing the telephone set to continue to receive electric current from the switchboard in an uninterrupted manner in said off-hook state;
when said dialing keyboard is pressed, said dialing unit stores data corresponding to a pressed key, said control unit is triggered to generate and send a control signal to said voice-generating circuit to pronounce a multiple-bit word, which is obtained via an encoder based on the pressed key;
finally, as SND key is pressed which interrupts said PO signal and causes said dialing unit to output the dialed number as desired pulse or DTMF signals.
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Abstract
A voice-dialing device without additional power supply can generate articulate voice signal upon dialing; such device can provide a function of voice dialing, and a function of confirming the dialing. In dialing operation, the device can provide a correct dialing by using the voice dialing as an auxiliary means; after dialing, a user can confirm the number dialed so as to ensure a user to control the dialing operation and the correctness of a number dialed.
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Citations
1 Claim
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1. A voice-generating telephone set, said voice-generating telephone set powered by telephone line power only, comprising:
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a dialing unit containing means for receiving keying signals from a dialing keyboard, means for sending out a pulse signal or a DTMF (dual-tone multi-frequency) signal, and a memory means for storing at least a number that has been dialed from said dialing keyboard, an XMUTE signal, a PO signal, and a DTMF signal corresponding to said dialed number, wherein when said PO signal is high, said dialing unit will not send out said pulse signal or said DTMF signal, thus maintaining an electric current loop between said said telephone set and a telephone switchboard in an off-hook state; said dialing keyboard including a plurality of keys and a keyboard circuitry such that, when one of said keys is pressed, said dialing unit is triggered to store in said memory means data corresponding to said key being pressed, and, at the same time, a control unit is triggered to generate and send a control signal to a voice-generating circuit; an encoder for receiving output from said dialing unit and said dialing keyboard, and encoding a keying signal into a multiple-bit binary value, which is then transmitted to said voice-generating circuit; said control unit comprising input means for receiving said keying signal from said dialing keyboard, and output means for triggering said voice-generating circuit to pronounce said multiple-bit binary value, said control unit further comprising means to send a PO signal to said dialing unit when a handset is lifted off hook, so as to maintain said PO signal at high such that said dialing unit will not send out said pulse signal or said DTMF signal, thus maintaining an electric current loop between said said telephone set and said telephone switchboard in said off-hook state; a SND key in said dialing keyboard for, when it is being pressed, triggering said dialing unit to send one or more DTMF signals corresponding to said dialed number. whereby when the handset is lifted from the hook, said control circuit send said PO signal to said dialing unit to hold off the sending of pulse or DTMF signals, thus allowing the telephone set to continue to receive electric current from the switchboard in an uninterrupted manner in said off-hook state;
when said dialing keyboard is pressed, said dialing unit stores data corresponding to a pressed key, said control unit is triggered to generate and send a control signal to said voice-generating circuit to pronounce a multiple-bit word, which is obtained via an encoder based on the pressed key;
finally, as SND key is pressed which interrupts said PO signal and causes said dialing unit to output the dialed number as desired pulse or DTMF signals.
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Specification
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Current AssigneeUTEK Semiconductor Corp. (United Microelectronics Corporation)
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Original AssigneeHoltek Microelectronics, Inc. (United Microelectronics Corporation)
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InventorsChang, Herman
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Primary Examiner(s)Zele, Krista
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Assistant Examiner(s)Hunter, Daniel S.
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Application NumberUS08/529,922Time in Patent Office960 DaysField of Search379/52, 379/67, 379/88, 379/352, 379/353, 379/354, 379/355, 379/356, 379/359, 379/361, 379/362, 379/368US Class Current379/88.03CPC Class CodesH04M 1/271 controlled by voice recogni...H04M 1/56 Arrangements for indicating...
