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| Number | Title | Issue Date |
| 6970056 | Filter assembly and communication apparatus A filter assembly includes a transmission filter, a reception filter, a change-over switch, and phase circuits. The transmission filter has first and second ends electrically connected to a first antenna terminal and a transmission terminal, respectively. The recept... | 11/29/2005 |
| 4263674 | Multi-band voltage variable capacitance tuner having automatic and manual tuning operations A tuning apparatus includes a dial plate marked with broadcast frequencies thereon, a guide shaft provided in parallel with the dial plate, a substrate having a resistive layer thereon, the resistive layer having varying resistance values distributed ther... | 04/21/1981 |
