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2. Sony Dream Machine - Wikipedia

   en.wikipedia.org/wiki/Sony_Dream_Machine

   In the mid 1960s, Sony introduced the first Dream Machine. The basic idea was to use a radio program to wake up users more pleasantly, as many people found the loud mechanical alarm made by traditional alarm clocks disturbing. The use of direct-read digital display as opposed to a traditional clock dial gave the design a modernistic feel, which ...

3. Voltage-controlled oscillator - Wikipedia

   en.wikipedia.org/wiki/Voltage-controlled_oscillator

   Design parameters for a VCXO clock generator are tuning voltage range, center frequency, frequency tuning range and the timing jitter of the output signal. Jitter is a form of phase noise that must be minimised in applications such as radio receivers, transmitters and measuring equipment.

4. Radio Data System - Wikipedia

   en.wikipedia.org/wiki/Radio_Data_System

   Radio Data System ( RDS) is a communications protocol standard for embedding small amounts of digital information in conventional FM radio broadcasts. RDS standardizes several types of information transmitted, including time, station identification and program information.

5. Tuner (radio) - Wikipedia

   en.wikipedia.org/wiki/Tuner_(radio)

   A television tuner converts a radio frequency analog television or digital television transmission into audio and video signals which can be further processed to produce sound and a picture.

6. Frequency synthesizer - Wikipedia

   en.wikipedia.org/wiki/Frequency_synthesizer

   A frequency synthesizer is an electronic circuit that generates a range of frequencies from a single reference frequency. Frequency synthesizers are used in many modern devices such as radio receivers, televisions, mobile telephones, radiotelephones, walkie-talkies, CB radios, cable television converter boxes, satellite receivers, and GPS systems.

7. Local oscillator - Wikipedia

   en.wikipedia.org/wiki/Local_oscillator

   Local oscillators are used in the superheterodyne receiver, the most common type of radio receiver circuit. They are also used in many other communications circuits such as modems, cable television set top boxes, frequency division multiplexing systems used in telephone trunklines, microwave relay systems, telemetry systems, atomic clocks, radio telescopes, and military electronic ...