Patent ID: 8141122
Filing Date: 2012-03-20
Classification: H04N

Abstract:
1. A terminate or permit device implemented in a community antenna television (CATV) system comprising a premise generating an upstream bandwidth, said terminate or permit device comprising: a first switch having a position responsive to a control, the position comprising a first position for conducting the upstream bandwidth from the premise, and a second position for terminating the upstream bandwidth; a detection circuit coupled to a transmission line, the detection circuit for generating an input from the upstream bandwidth; and a discrimination circuit responsive to the input, the discrimination circuit comprising: wherein the control corresponds to an interval between the first leading edge and second leading edge, and wherein the interval for the first position is less than the interval for the second position; and wherein the first circuit comprises a multi-vibrator that has at least one resistor with a resistor value, and at least one capacitor with a capacitor value, and wherein each of the resistor value and the capacitor value is selected so that the long pulses have a pulse length that is determined in accordance with, t where t