TTPCOM Limited
32Patents
11Active
32Granted
41Portfolio score
Filing activity: Sep 14, 1999 → Nov 3, 2008 · 11 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7324787B2 | Method of ramping up output level of power amplifier of radio communication system, communication semiconductor integrated circuit, and radio communication system | Electricity | 64 | Expired |
| US6658232B1 | Method and system for transmitting audio data together with other data, comprising addressing data, to a receiver | Electricity | 45 | Expired |
| US7269402B2 | PLL circuit having a multi-band oscillator and compensating oscillation frequency | Electricity | 34 | Active |
| US7148764B2 | Communication semiconductor integrated circuit device and a wireless communication system | Electricity | 31 | Expired |
| US7231235B2 | Wireless communication terminals | Emerging Cross-Sectional Technologies | 28 | Expired |
| US7103337B2 | PLL circuit having a multi-band oscillator and compensating oscillation frequency | Electricity | 27 | Expired |
| US7085544B2 | Transmitter having a phase control loop whose frequency bandwidth is varied in accordance with modulation modes | Electricity | 26 | Expired |
| US7082290B2 | Communication semiconductor integrated circuit, a wireless communication apparatus, and a loop gain calibration method | Electricity | 23 | Expired |
| US7433653B2 | Transmitter and semiconductor integrated circuit for communication | Electricity | 14 | Active |
| US6900700B2 | Communication semiconductor integrated circuit and radio communication system | Electricity | 10 | Expired |
| US7110730B2 | Apparatus for mobile communication system which performs signal transmission by amplitude modulation and phase modulation | Electricity | 10 | Expired |
| US7027785B2 | Transmitter RF power control | Electricity | 7 | Expired |
| US7263340B2 | PLL circuit having a multi-band oscillator and compensating oscillation frequency | Electricity | 5 | Active |
| US7116950B2 | Direct-conversion transmitting circuit and integrated transmitting/receiving circuit | Electricity | 5 | Expired |
| US7230997B2 | Semiconductor integrated circuit for communication, radio-communications apparatus, and transmission starting method | Electricity | 5 | Expired |
| US8095094B2 | Communication semiconductor integrated circuit, communication electronic component and wireless communication system | Electricity | 4 | Active |
| US7885626B2 | Mobile communication apparatus | Electricity | 4 | Active |
| US7205850B2 | Communication semiconductor integrated circuit device and a wireless communication system | Electricity | 3 | Expired |
| US7333779B2 | PLL circuit and radio communication terminal apparatus using the same | Electricity | 3 | Active |
| US7499689B2 | Communication semiconductor integrated circuit device and a wireless communication system | Electricity | 3 | Active |
| US6996377B1 | PLL circuit and radio communication terminal apparatus using the same | Electricity | 3 | Expired |
| US7424276B2 | Transmitter and wireless communication apparatus using the transmitter | Electricity | 3 | Expired |
| US7366489B2 | Mobile communication apparatus | Electricity | 2 | Expired |
| US6912380B2 | PLL circuit and wireless mobile station with that PLL circuit | Electricity | 2 | Expired |
| US6608510B2 | PLL circuit and wireless mobile station with that PLL circuit | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.