| 摘要 |
PCT No. PCT/IB96/00052 Sec. 371 Date Jul. 10, 1997 Sec. 102(e) Date Jul. 10, 1997 PCT Filed Jan. 23, 1996 PCT Pub. No. WO96/23354 PCT Pub. Date Aug. 1, 1996A tuner includes a conversion (or heterodyning) stage, including a local oscillator and a mixer, for converting an RF signal corresponding to a selected channel to an IF signal. The local oscillator has only one tunable oscillating portion for generating a signal, and a frequency converter, such as a controllable frequency divider, for converting the frequency of the signal generated by said oscillating portion, so that the receiver is able to tune through the UHF and VHF bands. The operation of the requency converter is responsive to a digital controller, such as a microprocessor.
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