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| Number | Title | Issue Date |
| 5325463 | IC card with built-in voice synthesizing function An IC card with a built-in voice synthesizing function is provided which includes a solid-state memory containing vector-quantized coded data, a pattern generating means for generating patterns each composed of a prescribed number of digital data by repea... | 06/28/1994 |
| 5228076 | High fidelity speech encoding for telecommunications systems A user-orientated telephone instrument including high-fidelity speech encoding, encryption capability and many function presently provided by centralized call processing is described. Utilizing an ADPCM encoding process including forward error correction,... | 07/13/1993 |
| 5214708 | Speech information extractor A method and apparatus for extracting information from human speech are dislosed. A speech signal is received into a bank of bandpass filters and the instantaneous amplitude modulation and frequency modulation of each harmonic in the speech waveform is de... | 05/25/1993 |
| 5189702 | Voice processing apparatus for varying the speed with which a voice signal is reproduced A voice processing apparatus capable of varying the speed of speech, in which a voice of a predetermined duration is represented by feature parameters and propriety information indicating whether a change in the speech speed is permitted or not. During vo... | 02/23/1993 |
| 5157759 | Written language parser system An enhanced text-to-speech synthesizer accepts freely generated text sequences of words and synthesizes the received sequences with proper emphasis and with properly placed pauses. In combination with other elements, the synthesizer provides for an enhanc... | 10/20/1992 |
| 5127054 | Speech quality improvement for voice coders and synthesizers A harmonic signal is created from a limited spectral representation of a voice signal. The harmonic signal is combined with the at least a portion of the limited delayed spectral signal to provide a reconstructed speech signal having perceptually improved... | 06/30/1992 |
| 5029211 | Speech analysis and synthesis system A speech analysis and synthesis system operates to determine a sound source signal for the entire interval of each speech unit which is to be used for speech synthesis, according to a spectrum parameter obtained from each speech unit based on cepstrum. Th... | 07/02/1991 |
| 4910782 | Speaker verification system Control reference pattern candidates corresponding to a verification reference patterns of a registered speaker are synthesized by connecting unit speech patterns of a plurality of speakers. A plurality of control reference patterns similar to the verific... | 03/20/1990 |
| 4809335 | Speech unit for dolls and other toys A speech unit for producing preselected words or phrases based on the orientation of a toy doll or figure. A gravity sensing means produces an output corresponding to the orientation of the sensing means with respect to gravity. The output of the sensing ... | 02/28/1989 |
| 4805220 | Conversionless digital speech production Clear speech can be produced on a DAC-less personal computer from an all-software speech-generating program with an unlimited vocabulary by applying to the computer's speaker a square-wave carrier signal of ultrasonic frequency, and varying the duty cycle... | 02/14/1989 |
| 4783811 | Method and apparatus for determining syllable boundaries In a text to speech system, digital text ASCII is examined for syllable boundaries to help accent generation for speech synthesis, and hyphenation in word processing. Digital allophone code characters in the form of a byte string are compared with prestor... | 11/08/1988 |
| 4726066 | Inter-oral speech aid A touch switch contacts on a unit housing are bridged by the fingers of a person's hand when holding the housing to trigger operation of a signal generating oscillator driving a transducer from which "voice" sound is generated and transmitted through a so... | 02/16/1988 |
| 4520499 | Combination speech synthesis and recognition apparatus A reconfigurable lattice filter is employed to permit the same circuitry to function as a speech synthesizer and as a speech analyzer or recognizer. The lattice filter can be configured both as an all-pole filter (for synthesis) and as an all-zero filter ... | 05/28/1985 |
| 4384170 | Method and apparatus for speech synthesizing A speech synthesizer including a device for storing compressed digital signals corresponding to original information speech or audio waveform time domain signals, the digital signals including information signal portions and instruction signal portions id... | 05/17/1983 |
| 4304965 | Data converter for a speech synthesizer Data converter for a speech synthesizer system wherein encoded formant parameters as stored in a memory are decoded and transformed or converted to reflection coefficients in real time by means of a circuit implementing a Taylor series type approximation.... | 12/08/1981 |
| 4276572 | Automatic message announcement system An automatic message announcement system for announcing the approach, arrival, and departure of vehicles such as trains at a train station. An addressable voice memory is provided for storing sequences of voice segments which are read out upon receipt of ... | 06/30/1981 |
