phase lock

phase lock

[′fāz ‚läk]
(electronics)
Technique of making the phase of an oscillator signal follow exactly the phase of a reference signal by comparing the phases between the two signals and using the resultant difference signal to adjust the frequency of the reference oscillator.
References in periodicals archive ?
By identifying the input password with all the passwords pre-stored in the database, the system can thus accomplish a preliminary verification: if there is not a match, that implies the visitor is unauthorized, and if there appears a match, a corresponding "phase lock" is then loaded and written into the Spatial Light Modulator ([SLM.sub.1]); 2) After the confirmation of the first step, the user is indicated to plug in his "phase key", which is accordingly written into the [SLM.sub.2]; 3) Two coherent plane waves, then modulated by the [SLM.sub.1] and [SLM.sub.2] separately, pass through a Half Mirror (HM) together and interference with each other at the output plane leading to an output image.
Ladhake, "Design of low power phase lock loop using 45 nm VLSI technology," International Journal of VLSI Design & Communication Systems, vol.
* A GPS driven, mixed-signal phase lock loop that provides a 1 PPS CMOS output.
Using TSMC's proprietary 65nm CyberShuttle prototyping service, the prestigious university in mainland China made breakthroughs in developing phase lock loop and analog digital converter technologies.
Key features/specification: Soft, padded lightweight design, 863-865MHz radio frequency transmission, PLL (phase lock loop) transmitter, auto tune, volume control built into headset and 12 month guarantee.
Also features a front-loading CD player with remote control, MW/FM/PLL (phase lock loop) radio with 5 pre-sets for each band' back-lit display, 5 pre-set graphic equaliser for rock, jazz, classical etc.
It incorporates an NTSC/PAL video input port, integrated Analog-to-Digital Converter (ADC) with Phase Lock Loop (PLL) and LVDS transmitters.
The TDA8260 integrated circuit combines in one chip the features of a zero-IF quadrature phase shift keyring/8PSK demodulator and a low-noise phase lock loop frequency synthesiser, enabling a reduction in the PCB area.
Although the UPS would run from the engine generator, the UPS rarely could phase lock synchronize to the engine generator and confirmed this with a constant "bypass not available" indication.
A high speed Clock and Data Recovery unit (CDR) uses sophisticated Phase Lock Loop (PLL) techniques to monitor the edges of the incoming serial data and extract a recovered clock at the bit rate.
* A high Q frmdamental mode crystal and analog Phase Lock Loop (PLL) multiplier for single or dual frequency.
Lucent Technologies has introduced the LCK 4953 Voltage Phase Lock Loop Clock Driver, a clock driver chip targeted at high-end computer workstations and network servers.