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| Number | Title | Issue Date |
| 4439749 | Electronic tuning block An electronic tuning block including a plurality of screw drive type variable resistors are juxtaposed parallel to one another obliquely on an insulating substrate, and holes for receiving pointers fitted to the screws of the variable resistors and holes ... | 03/27/1984 |
| 4368441 | Key assembly A key assembly for receivers for communication systems, especially radio television receivers, comprises a casing, keys adapted for mutual release by means of a spring-loaded locking plate for switching in storable, selectively adjustable electrical val... | 01/11/1983 |
| 4305053 | Indicator driving device for television receiver incorporating radio receiver An improvement in the indicator driving device for use in a television receiver incorporating a radio receiver is shown. There is provided an indicator driving device of a type in which the selection of a channel for the television receiver and the select... | 12/08/1981 |
| 4287600 | Frequency synthesizer with ROM controlled divider and display A frequency synthesizer is disclosed in which a single read only memory (ROM) is utilized to directly control programmable frequency dividers in a phase locked loop while also directly controlling the excitation of seven segment visual digital display mod... | 09/01/1981 |
| 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 |
| 4200850 | Combination VHF and UHF tuner arrangement A combination VHF and UHF tuner is provided in which a common station selector shaft may be rotated a number of revolutions to cover the seventy stations in the UHF band. The common selector shaft is provided with twenty-four detent positions per revoluti... | 04/29/1980 |
| 4167702 | Tuning apparatus A tuning apparatus includes a dial plate marked with broadcast frequencies thereon; guide shafts provided in parallel with the dial plate; a plurality of markers slidably mounted on the dial plate, with each marker representing a preset position and forme... | 09/11/1979 |
| 4056794 | Channel selection mechanism for an electronic tuner A channel selection mechanism for an electronic tuner of a television receiver comprises a motor-driven shaft, a voltage selection rotary switch with the contact arm mounted on the shaft, a channel number indicating drum mounted on the shaft for rotation ... | 11/01/1977 |
| 4048949 | Planetary turret indicator A turret indicator for a television receiver includes a stationary gear attached to a mounting base with a shaft passing through it. A rotatable carrier turret is mounted on the shaft and it carries five rotatable planetary indicator turrets which are pro... | 09/20/1977 |
| 4009451 | Frequency range selectable oscillator for multichannel communication system To provide the required multiple channels for an aircraft communications system, a crystal controlled reference oscillator includes a tunable circuit for changing the base reference frequency provided by a crystal. The base reference frequency of the crys... | 02/22/1977 |
| 3973229 | Combined 82-position UHF and VHF television tuner with memory fine tuning A combination UHF and VHF television tuner having a single detented selector shaft for individually selecting each one of the 82 UHF and VHF television channels and a single fine tuning shaft for providing memory fine tuning of channels in both the UHF an... | 08/03/1976 |
| 3959729 | Electro-optic tuning indicator A receiver selectively and variably tunable to one of a number of broadcast stations has an electro-optic tuning indicator for providing a visual indication of a selected station. The indicator includes a station encoder having a plurality of sets of indi... | 05/25/1976 |
| 3937877 | Position indicating device A TV channel indicator wherein the tuner shaft carries a program disc having a plurality of cam sticks, each of which has a cam surface corresponding to a respective channel. There is a panel of leaf switches which play against the cam surfaces to close t... | 02/10/1976 |
