Robert R. Asprey
26Patents
15h-index
9Co-inventors
70Inventor score
Filing activity: Sep 11, 1987 → Sep 10, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6418494B1 | Split computer architecture to separate user and processor while retaining original user interface | Electricity | 61 | Expired |
| US5268676A | Computer-monitor extended range communications link | Electricity | 59 | Expired |
| US5353409A | Computer-monitor extended range communications link | Electricity | 50 | Expired |
| US6185643A | Method and apparatus for extending the range between a computer and computer peripherals | Physics | 35 | Expired |
| US5257390A | Extended range computer communications link | Electricity | 32 | Expired |
| US4885718A | Extended communications link for keyboard and display units remotely located from a computer | Electricity | 23 | Expired |
| US5193200A | Computer-monitor extended range communications link for attenuating and subsequently restoring high frequency components of transmitted video signals | Electricity | 23 | Expired |
| US6150997A | Video transmission system | Electricity | 22 | Expired |
| US5299306A | Apparatus for simultaneously coupling computer video signals to a local color monitor and a distant monochrome monitor | Electricity | 21 | Expired |
| US5926509A | Twisted pair communicatons line system | Electricity | 20 | Expired |
| US6184919A | Extended length differentially driven analog video link | Electricity | 18 | Expired |
| US5587824A | Open collector communications link | Electricity | 17 | Expired |
| US5576723A | VGA signal converter for converting VGA color signals to VGA monochrome signals | Electricity | 17 | Expired |
| US5323420A | Circuitry for regenerating digital signals in extended distance communications systems | Electricity | 16 | Expired |
| US7320043B2 | Split computer architecture to separate user and processor while retaining original user interface | Electricity | 15 | Expired |
| US6748473B1 | Split computer system including transmission of video data between plural enclosures | Electricity | 14 | Expired |
| US5386574A | Temperature compensated extended range computer communications link | Electricity | 13 | Expired |
| US6377629B1 | Twisted pair communications line system | Electricity | 11 | Expired |
| US5227666A | Power sharing switching circuit | Physics | 11 | Expired |
| US5263171A | Device for interfacing two keyboards to one computer and for automatically connecting the active keyboard to the computer | Physics | 9 | Expired |
| US7020732B2 | Split computer architecture | Electricity | 8 | Expired |
| US5222228A | Character and signal generator for detecting keyboard disconnected condition generated by an interrupted booting process and generating signal indicating that keyboard is now coupled thereto | Physics | 8 | Expired |
| US5276404A | Constant current video amplifier | Electricity | 8 | Expired |
| US6807639B2 | Split computer architecture to separate user and processor while retaining original user interface | Electricity | 5 | Expired |
| US7643018B1 | Twisted pair communications line system | Electricity | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.