Craig C. Todd
35Patents
22h-index
21Co-inventors
85Inventor score
Filing activity: Jul 19, 1982 → Jan 9, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6021386A | Coding method and apparatus for multiple channels of audio information representing three-dimensional sound fields | Electricity | 396 | Expired |
| US5583962A | Encoder/decoder for multidimensional sound fields | Electricity | 275 | Expired |
| US5632005A | Encoder/decoder for multidimensional sound fields | Electricity | 221 | Expired |
| US5581653A | Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder | Electricity | 161 | Expired |
| US5274740A | Decoder for variable number of channel presentation of multidimensional sound fields | Electricity | 122 | Expired |
| US5909664A | Method and apparatus for encoding and decoding audio information representing three-dimensional sound fields | Electricity | 118 | Expired |
| US5400433A | Decoder for variable-number of channel presentation of multidimensional sound fields | Electricity | 116 | Expired |
| US5632003A | Computationally efficient adaptive bit allocation for coding method and apparatus | Electricity | 105 | Expired |
| US4700362A | A-D encoder and D-A decoder system | Electricity | 96 | Expired |
| US4799260A | Variable matrix decoder | Electricity | 74 | Expired |
| US5550541A | Compact source coding tables for encoder/decoder system | Electricity | 59 | Expired |
| US5046098A | Variable matrix decoder with three output channels | Electricity | 59 | Expired |
| US5873065A | Two-stage compression and expansion of coupling processed multi-channel sound signals for transmission and recording | Physics | 54 | Expired |
| US4941177A | Variable matrix decoder | Electricity | 52 | Expired |
| US6016295A | Audio system which not only enables the application of the surround sytem standard to special playback uses but also easily maintains compatibility with a surround system | Physics | 49 | Expired |
| US5899969A | Frame-based audio coding with gain-control words | Physics | 35 | Expired |
| US5896358A | Audio system which not only enables the application of the surround system standard to special playback uses but also easily maintains compatibility with a surround system | Physics | 32 | Expired |
| US5451954A | Quantization noise suppression for encoder/decoder system | Electricity | 31 | Expired |
| US5357284A | Compatible digital audio for NTSC television | Electricity | 28 | Expired |
| US4700361A | Spectral emphasis and de-emphasis | Electricity | 27 | Expired |
| US6085163A | Using time-aligned blocks of encoded audio in video/audio applications to facilitate audio switching | Electricity | 25 | Expired |
| US5913190A | Frame-based audio coding with video/audio data synchronization by audio sample rate conversion | Physics | 24 | Expired |
| US5402124A | Encoder and decoder with improved quantizer using reserved quantizer level for small amplitude signals | Electricity | 18 | Expired |
| US4577305A | Stereophonic motion picture photographic sound-tracks compatible with different sound projection formats and record and playback apparatus therefore | Electricity | 12 | Expired |
| US9462215B2 | Enhanced global dimming for projector display systems | Physics | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.