Noboru Kawada
19Patents
6h-index
9Co-inventors
51Inventor score
Filing activity: Jan 26, 1993 → Feb 20, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5757865A | Carrier phase control circuit | Electricity | 42 | Expired |
| US5515429A | Backup apparatus against line defect and backup method against line defect | Electricity | 24 | Expired |
| US5563908A | Modulator and demodulator apparatus | Electricity | 23 | Expired |
| US5537437A | Initialization equalization for modulation and demodulation using special training pattern | Electricity | 21 | Expired |
| US5625643A | Modulator and demodulator apparatus | Electricity | 20 | Expired |
| US5388122A | Modulation and demodulation system | Electricity | 9 | Expired |
| US5432786A | Modem for modulating and demodulating main signal and secondary signal with clock synchronized system and transforming secondary signal between start-stop system and clock-synchronized system | Electricity | 6 | Expired |
| US5710754A | Multiplex transmission system wherein analog signal is transformed to base band random-transformed and superimposed on dispersed signal points in vector signal space | Electricity | 5 | Expired |
| US6298036A | Multiplex transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space | Electricity | 4 | Expired |
| US5648993A | Method and apparatus for synchronizing modem transmission by controlling a measured phase difference between an internal timing signal and a transmission timing signal | Electricity | 4 | Expired |
| US6448861B2 | PLL controller, method of PLL control, and limiter | Electricity | 3 | Expired |
| US6021160A | Training method for non-nyquist transmission system and training data transmission apparatus for non-nyquist transmission system | Electricity | 3 | Expired |
| US5963593A | Line equalizer control method, and integrating circuit, frequency shift circuit and transmission device | Electricity | 3 | Expired |
| US6377647B1 | PLL circuit | Electricity | 3 | Expired |
| US5442656A | Timing extraction device and data transmission device using the timing extraction device | Electricity | 2 | Expired |
| US6226302A | Multiplex transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space | Electricity | 1 | Expired |
| US6282237A | Multiple transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space | Electricity | 1 | Expired |
| US6002712A | Timing phase control apparatus and timing phase control method | Electricity | 0 | Expired |
| US6078624A | Judging method and a precoding apparatus | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.