Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 7408851 | Pseudo multi-channel play-back apparatus Compressed audio data for 5.1 channels stored in the DVD-ROM 11A is read by the AC-3 decoder 12 of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer 13, channel by channel. Among stored audio ... | 08/05/2008 |
| 6996040 | Pseudo multi-channel play-back apparatus Compressed audio data for 5.1 channels stored in the DVD-ROM 11A is read by the AC-3 decoder 12 of a pseudo multi-channel stereo play-back apparatus and, after expansion, stored temporarily in a buffer 13, channel by channel. Among stored audio ... | 02/07/2006 |
| 5798922 | Method and apparatus for electronically embedding directional cues in two channels of sound for interactive applications A system for providing audible cues that enable a listener to identify locations of origins of sounds. In one embodiment, a front and rear signal are copies of an input signal. The rear signal is modified by application of a modified head related transfer... | 08/25/1998 |
| 4920569 | Digital audio signal playback system delay A signal processing circuit in a playback system, according to the present invention, comprises a storage device for temporarily storing a digital signal output from a digital output stage of the playback system and a controller for controlling the data s... | 04/24/1990 |
| 4815131 | Digital audio channel selection circuit A digital audio channel selection circuit for a serial audio signal having two multiplexed channels. The digital signal is converted from digital to analog and applied to two separate sample and hold circuits. Sampling pulses for the two channels are obta... | 03/21/1989 |
| 4812921 | Sound field expansion system for a video tape recorder A sound field expansion system applicable to a magnetic recording and reproducing apparatus (VTR) which can expand the sound field in a simple construction. In the sound field expansion system, a circuit for virtually forming two comb filter characteristi... | 03/14/1989 |
| 4792974 | Automated stereo synthesizer for audiovisual programs Surround stereo signals are synthesized from the composite or DME monaural sound tracks of audiovisual programs by use of multi-channel, computer-controlled digital circuitry and operator-programmed sound cues, the latter matching video time codes with au... | 12/20/1988 |
| 4642812 | Sound field enlarging device and method A method for performing sound field enlargement in a digital audio reproducing apparatus such as a compact disc player. A sum is calculated between each received pair of right-channel and left-channel data read from the disc, and the resulting sum data is... | 02/10/1987 |
| 4308424 | Simulated stereo from a monaural source sound reproduction system A source of monaural sound such as a radio receiver or record player provides an audio signal which is fed along parallel paths to a like number of speakers. In one or more paths there is a control which imparts amplification or gain to the signal. In the... | 12/29/1981 |
| 3971890 | Method and apparatus for quadraphonic enhancement of stereophonic signals Method and apparatus are described for translating or "encoding" the left and right signals from a stereophonic source such that when the signals are reproduced by a four-channel decoder the resulting sound field is highly simulative of that produced from... | 07/27/1976 |
