Title:
TUNING WITH DIODE DETECTOR
Document Type and Number:
WIPO Patent Application WO1999048201
Kind Code:
A3
Abstract:
A tuner for example for a television receiver, comprises a UHF and a VHF section and a mixer oscillator stage. It is known that the VHF frquency band has to be splitted in at least two parts to handle the VHF signals. The invention proposes to use two separate VHF oscillators in the mixer oscillator stage and detecting means to switch tuned parts of the VHF section. In this way the performance of the tuner is improved.
Inventors:
WINK MEYE
Application Number:
PCT/IB1999/000332
Publication Date:
December 23, 1999
Filing Date:
February 25, 1999
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS SVENSKA AB (SE)
PHILIPS SVENSKA AB (SE)
International Classes:
H03J5/24; H04B1/18; (IPC1-7): H03J5/24
Foreign References:
| EP0348697A2 | 1990-01-03 | |||
| EP0898365A1 | 1999-02-24 |
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