for assuring initial synchronisation or for broadening the capture range

Child Classifications

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• H03L 7/101 +1 CPC CPC only CPC only
• H03L 7/104 CPC only CPC only
• H03L 7/105 CPC only CPC only
• H03L 7/107 using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth since 1990 +3 CPC IPC+CPC Available in IPC and CPC
• H03L 7/113 using frequency discriminator since 1990 IPC+CPC Available in IPC and CPC
• H03L 7/12 using a scanning signal since 1980 IPC+CPC Available in IPC and CPC