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4509188 Signal synthesizer apparatus  
A signal synthesizer apparatus having a parameter dependent multiplier which includes charge-coupled devices. The multiplier has a gating input to store a charge corresponding to an input signal...
4489438 Audio response system  
The system receives line signals including tone coded information request messages from a telephone line and transmits synthesized human voice response messages along the same line. The system...
4482976 Voice data output apparatus for electronic cash registers  
A voice data output apparatus for an electronic cash register comprises in turn a voice output circuit which in turn judges as to whether or not the input money data is a first registered number...
4480253 Wrist watch weather radio  
A miniature radio receiver for receiving coded radio transmissions pertaining to the actual or predicted state of the weather and storing the information in a memory from which information can be...
4468805 Variable frame length data converter for a speech synthesis circuit  
A speech synthesis circuit is provided with a variable frame length data converter and the speech synthesizer is preferably integrated on an integrated circuit chips. The variable frame length...
4454608 Audio response apparatus  
Prestored volume level data in a speech synthesis system controls the reference voltage to the resistor-divider network of the D/A converter to provide a volume-controlled output speech signal.
4449233 Speech synthesis system with parameter look up table  
This system includes an LPC parameter speech synthesizer which basically needs ten binary bits for each LPC coefficient. However, external sources are allowed reduced storage and frame rate...
4449231 Test signal generator for simulated speech  
A test signal generator for pseudo-simulated non-intelligible speech. The generator comprises first and second ROM's controlled by first and second address counters driven by a single clock. The...
4445187 Video games with voice dialog  
A video game system by which human viewers conduct simulated voice conversations with game characters or cartoon characters in a branching story game shown on a television screen. The characters...
4435831 Method and apparatus for time domain compression and synthesis of unvoiced audible signals  
Compression and synthesis techniques and related apparatus for time domain signals, particularly signals whose information content resides in the power spectrum such as speech and more...
4430713 PLU-Code controlled electronic cash register  
An electronic cash register includes a PLU (Price-look-up) function, wherein merchandise information such as a unit cost, taxation information and classification information is preset for each...
4423290 Speech synthesizer with capability of discontinuing to provide audible output  
A noise-free speech synthesizer is disclosed which interrupts an audible output of synthesized sounds during the period of time where a sound waveform signal is at a relatively low level...
4412099 Sound synthesizing apparatus  
In this speech synthesizer which announces the time, storage and complexity is minimized by switching selection of fixed data and variable data from corresponding memories, to compose the phrase...
4408096 Sound or voice responsive timepiece  
A timepiece having a speech synthesizer output device is disclosed herein. The speech synthesizer is responsive to sound input such as human voices (e.g., what time is it?) or the sound of...
4385359 Multiple-channel voice input/output system  
A multiple channel voice I/O system including a control device and switching mechanism for enabling the system to handle a greater number of user channels than there are recognition inputs. The...
4380185 Talking metronome  
A talking metronome is disclosed which is programmable to generate a human voice pattern of a sequence of numbers at a selected tempo (mm) and time signature (cadence) at one or more beat...
RE31172 Sound synthesizing apparatus  
An analog sound signal the time axis of which is compressed is sampled responsive to a write clock signal and the sampled output is stored in an analog shift register having a given capacity,...
4357489 Low voltage speech synthesis system with pulse width digital-to-analog converter  
Integrated circuit speech synthesis system utilizing complementary metal-insulator-semiconductor technology to achieve low voltage operation, wherein a pluse width modulated digital-to-analog...
4335277 Control interface system for use with a memory device executing variable length instructions  
A control interface system for use with a memory device executing variable length instructions and implementable utilizing integratable field effect semiconductor devices is disclosed. One example...
4328562 Means for displaying at least two different words and for providing independent pronunciations of these words  
A portable electronic dictionary and language interpreter comprises an input device for simultaneously entering at least two different words in a first language, a translator for causing retrieval...
4310831 Pulse width modulated, push/pull digital to analog converter  
A pulse width modulated digital-to-analog converter for utilization in low voltage, integrated circuit speech synthesis circuitry. A digitally programmable shift register is utilized to generate a...
4305131 Dialog between TV movies and human viewers  
A video amusement system by which one or more viewers influence the course of a motion picture as if each viewer were a participant in a real-life drama or dialog. A speech-recognition unit...
4301329 Speech analysis and synthesis apparatus  
In order to prevent errors and instability which may occur in a speech analysis and synthesis apparatus when the normalized predictive residual power falls to low levels, for example in...
4282404 Synthetic-speech calculators  
A synthetic speech calculator is provided which is capable of generating an audible sound signal which can be representative of keyed data, sequences of keyed data (and errors), processed data,...
4272649 Processor controlled sound synthesizer  
An electronic circuit is disclosed which is capable of producing synthesized sounds under the control of a microprocessor or other type computer. A plurality of switch inputs are provided whereby...
4271332 Speech signal A/D converter using an instantaneously-variable bandwidth filter  
In a preferred embodiment of the invention the audio signal is bandwidth limited before being differentiated to provide either a positive or negative signal (depending on the slope of the audio...
4255618 Digital intercept recorder/announcer system  
A digital intercept recorder/announcer system for use in conjunction with a telephone central office. The system performs the function of recorded message announcement for messages such as wrong...
4234761 Method of communicating digital speech data and a memory for storing such data  
A method of communicating Digital Speech Data to a speech synthesis circuit. The data is compressed to on the order of 1000-1200 bits, per second for normal human speech. The speech synthesis...
4142067 Speech analyzer for analyzing frequency perturbations in a speech pattern to determine the emotional state of a person  
A speech analyzer is provided for determining the emotional state of a person by analyzing pitch or frequency perturbations in the speech pattern. The analyzer determines null points or "flat"...
4092495 Speech synthesizing apparatus  
Speech synthesizing apparatus is provided in which different sounds are required for a plurality of channels. The channels are polled in turn on a cyclic scanning basis, the scan for each channel...
4071888 Telephone multiline automatic voice answer system  
A telephone multiline inquiry voice answer system is realized by employing a minicomputer system. Predetermined voice signals are digitally encoded and stand in a disk memory. In response to...
4016540 Apparatus and method for providing interactive audio communication  
A system for operator interaction is provided using a stored program digital data processor and an audio message sub-system to process digital information and to provide audio messages for...
3996554 Data transmission system  
A data transmission system for a road vehicle has an aerial on the road vehicle for picking up signals from an external transmitter. This aerial passes a signal to a receiver on the vehicle which...
3974334 Waveform processing  
A complex waveform synthesizer comprises a plurality of digital oscillators producing unit waveforms at distinct frequencies and constituted by respective storage zones storing, as digital words,...
3936610 Dual delay line storage sound signal processor  
Sound signals are processed for compression or expansion utilizing storage and frequency transformation into storage delay lines operated alternately to transform alternate segments of the sound...
3934094 Frequency band converter  
A frequency band converter wherein a signal whose frequency band is to be converted is written in a random access memory at a predetermined cycle while the contents of the random access memory are...
3898396 Automatic verification announcer  
Test equipment for verifying trunk routing in a telephone system by developing, in response to a verification request, a series of spoken words identifying the area code and the telephone exchange...
3870818 Solid state digital automatic voice response system  
A voice response device similar to an annuciator includes comprising individual circuits each capable upon triggering of generating speech synthesizing signals corresponding to a given word or...
3869575 Speech-synthesis system  
The present invention relates to speech synthesis system wherein the acoustic message items are optically stored. The system according to the invention comprises: an optical store including a...
3855424 INFORMATION PROCESSOR FOR CHANGING TEMPO OF PLAYBACK FROM THE RECORDED TEMPO  
Accelerated or retarded signal playback is accomplished by writing the information alternately into one shift register at one clock frequency and reading out from the other shift register at...
3838218 BIFREQUENCY CONTROLLED ANALOG SHIFT REGISTER SPEECH PROCESSOR  
A processor for recorded speech and other sounds uses an analog shift register operating at one clock frequency to propogate speech signals through the register while a second clock frequency is...
3816660 SPEECH SYNTHESIZER WITH GLIDE CONTROL  
A film plate with a series of signal patterns representative of successions of individual speech-sound wave units stored thereon is disposed in front of a cathode ray tube having an optical fiber...
3794753 SYNTHESIS OF SPEECH FROM A MAGNETIC TAPE MATRIX STORAGE OF PHONETIC SEGMENTS  
Phonetic sounds are recorded on several magnetic tapes, each tape storing a number of different phonetic sounds. A matrix of magnetic heads reads the tapes. Multiplexing of the signals from the...
3703609 NOISE SIGNAL GENERATOR FOR A DIGITAL SPEECH SYNTHESIZER  
Disclosed is an electrical-signal synthesizer for converting digitally coded information associated with at least one electrical signal, whose frequency, amplitude or phase may vary, to analog...
3697699 DIGITAL SPEECH SIGNAL SYNTHESIZER  
Disclosed is an electrical-signal synthesizer for converting digitally coded information associated with at least one electrical signal, whose frequency, amplitude or phase may vary, to analog...
3694811 QUERY AND RESPONSE SYSTEM WITH AUDIO MESSAGE SYNTHESIZING  
A query and response system embodying an audio response generator for synthesizing audio messages responsive to subscriber queries, said audio response generator comprising an audio memory unit...
3683113 SYNTHETIC ANIMAL SOUND GENERATOR AND METHOD  
A circuit for generating signals in the audio frequency range which signals contain effective parts of animal calls. Because the signals are of relatively narrow bandwidth, the apparatus is uncomplex.
3652801 CIRCUIT ARRANGEMENT FOR SYNTHESIS OF ACOUSTIC ELEMENTS  
The artificial speech initiating electrical signal is in the form of periodic triangular vibrations or of a noise signal. The signal is selectively applied through a coordinate control matrix to...
3624301 SPEECH SYNTHESIZER UTILIZING STORED PHONEMES  
A system for synthesizing sounds is disclosed which has a plurality of phonemes recorded for example one phoneme per track in each of several tracks of a recording medium. A plurality of latch...
3510588 SPEECH SYNTHESIS METHODS AND APPARATUS