Tuning indicating device having a two-dimensional display of two

Details Tuning indicating device having a two-dimensional display of two Tuning indicating device having a two-dimensional display of two

1978-01-19

1979-08-21

Smith, Alfred E.

Tuners

With indicator

334 36, 313510, H03J 104, H03J 102, H01J 162

Patent

active

041655001

ABSTRACT:
A tuning indicating device in a radio tuner displays S-meter and T-meter tuning information in a single, two-dimensional display. The display unit forms a two-dimensional pattern in response to drive signals corresponding to the S-meter and T-meter tuning information and preferably comprises two groups of electrodes disposed to sandwich a plate-shaped member made of a material whose optical characteristic is changed in response to an electrical field strength applied thereto. One of the groups of electrodes is a plurality of film electrodes which are aligned in one and the same direction, while the other is a plurality of film electrodes which are arranged in such a manner that the configurations thereof are different from one another gradually in a predetermined direction and which are aligned in a direction different from the direction of the one group of film electrodes.

REFERENCES:
patent: 1893421 (1933-01-01), Latzko et al.
patent: 2755457 (1956-07-01), Diemer et al.
patent: 2790161 (1957-04-01), Joorman

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