This invention is directed at a sleep switch volume control wherein the body portion of a clock radio timer knob has conductive and insulative portions which may be formed on two transverse, circumferential sections. The two sections are in abutting, parallel relation to each other. The conductive portions and insulative portions of the two sections are off-set from each other and are selectively electrically connected to an electrical circuit as the knob is rotated. A variation of the sleep switch volume control utilizes two transverse uninsulated sections which are electrically insulated from each other and which are located circumferentially on the body portion of the timer knob. The uninsulated sections are selectively electrically connected to an electrical circuit as the timer knob of the radio rotates.

A digital tuning element and method of making same for an electronic tuning means for an automobile radio which has a drive means for positioning said element, detecting means providing an electrical output signal related to the position of said tuning element, and means receiving the output signal for controlling a tuning circuit. The tuning element is a body which is angularly positionable and includes a coding means on its surface, with the detecting means sensing the coding means for providing binary coded output signals over a plurality of output channels to a receiving means for controlling a tuning circuit.

A multifunction mechaposition expanding controlling apparatus and method thereof are provided which can expand and control the mechaposition according to the number of the function as many as the desired numbers by rotating, above 360.degree., having the program switch of a rotary type of the multifunction electronic machineries having a deck. The apparatus comprises a microcomputer, a capstan motor and a loading motor, a program switch of a rotary type, a deck and a motor driving portion.

A non-duplication switching arrangement for a cable television system comprises cards that are provided with computer-formed punch holes to correspond to the time periods when the same programs are to be presented on different channels. The cards are mounted in carriers which are loaded into a holder. The carriers with the cards are withdrawn successively from the holder and pass through a photoelectric readout arrangement which detects the presence of the holes and operates relays at the headend equipment to delete the particular channel from transmission over the cable during the time periods at which the holes are detected.

The present invention relates to a T.V. tuner cassette insertable into a tape player. These tape players (or recorders) normally have magnetic pick-up heads, volume controls and other signal conditioning circuitry which collect and modify an audio signal prior to application of the audio signal to one or more speakers. The T.V. tuner cassette demodulates the audio components of the received T.V. signal and applies the demodulated audio component to the electronic circuitry in the tape player by an inductive or an electromagnetic link established with the magnetic pick-up head in the tape player and an inductive transmitter in the T.V. tuner cassette. The T.V. tuner cassette is powered from a power cable extending beyond or outboard of the tape player. The power cable, at its remote end, terminates in a cigarette lighter adapter plug. This plug fits into a standard cigarette lighter outlet. Mounted on the cigarette lighter adapter plug is a tuner control such that a user can select a T.V. broadcast signals by actuating or rotating the tuner control. In addition, the power cord may include or carry an antenna for the T.V. tuner cassette. A method of detecting and reproducing the audio component of a T.V. signal is also included.