WINDOW LOCK SYSTEM SOLD AS

Brand	Owner	Address	Description
SECURE NEST	Simonton Building Products, Inc.	5300 Briscoe Road Parkersburg WV 26102	Window lock system sold as an integral component of non-metal windows, consisting primarily of a lock housing, lever, cam, slide plate, and keeper;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

In a phase-locked loop circuit including a lock detection function, the phase-locked loop circuit includes a lock detection circuit. The lock detection circuit includes a lock-window-entry detection circuit and a lock-detection-signal generation circuit. The lock-window-entry detection circuit detects a front edge of an up signal or a down signal generated by a phase frequency detector at a front edge of a delayed up signal or a delayed down signal to generate a lock-window-entry detection signal, wherein the delayed up signal or the delayed down signal is delayed substantially by as much as a lock window. The lock-detection-signal generation circuit counts an input signal of a phase-locked loop circuit to generate a lock detection signal when the lock-window-entry detection signal is continuously enabled for a predetermined time period. In this manner, a lock detection signal is output only when the phase locking operation has been completed.