| Patent application number | Description | Published |
|---|
| 20090251840 | QUARTER WAVE STUB SURGE SUPPRESSOR WITH COUPLED PINS - A surge suppressor for protecting electronic equipment by suppressing damaging surges of low frequency signals in a radio frequency (RF) transmission line, while allowing RF signals of a desired frequency range to pass through the transmission line. The surge suppressor can comprise a housing, a center pin connected to a stub, and at least one interface pin conductively coupled to the cable and capacitively coupled to the center pin. The surge suppressor can have a signal pass through bandwidth approximately 10 times exceeding the bandwidth of traditional quarter wavelength stub (QWS) devices, a higher return loss, and higher surge attenuation level. The surge suppressor can be symmetrically insertable into a cable providing an RF communication line. | 10-08-2009 |
| 20100244980 | METHOD AND APPARATUS FOR A SELF-TERMINATING SIGNAL PATH - Presented are method and apparatus embodiments to terminate an interruptible signal path when the interruptible signal path is unterminated. The apparatus can comprise a signal path from a supplier-side port thru a user-side port, a signal source arranged to provide a signal to the conductor; and a signal circuit arranged in the interruptible signal path. The apparatus can determine when the signal path is unterminated and, in that case, interrupt and terminate the signal path by putting a signal switching device in the appropriate state and/or sending signals from the signal path to a prescribed signal level connection point. When a user device is not connected or connected improperly, or the signals through the signal path are otherwise unterminated, the interruptible signal path can be interrupted and terminated. The method and apparatus embodiments can be used in various combinations with multiple signal paths having multiple signal branches. | 09-30-2010 |
| 20100251321 | UPSTREAM BANDWIDTH CONDITIONING DEVICE - An upstream bandwidth conditioning device is provided that can be inserted into a signal transmission line of a CATV system on a premise of a user. The device includes a tunable low pass filter, a tunable high pass filter connected in series with the tunable low pass filter, and at least one voltage control unit. The voltage control unit is configured to adjust each of the tunable low pass filter and the tunable high pass filter between at least a first intermediate frequency range having a first width and a second intermediate frequency range having a second width. The first width differs in size from the second width. | 09-30-2010 |
| 20100251322 | UPSTREAM BANDWIDTH CONDITIONING DEVICE - An upstream bandwidth conditioning device that can be inserted into a signal transmission line of a CATV system on a premise of a user includes a main signal path and a filter array including a plurality of discrete signal filters coupled to the main signal path. Each of the signal filters is configured to reduce a signal level of at least one frequency portion of an upstream bandwidth. The device further includes a controller configured to select between a plurality of states. In at least two of the states at least one of the signal filters is selected such that a signal level of a lower frequency portion of the upstream bandwidth and a signal level of an higher frequency portion of the upstream bandwidth are reduced by a greater amount than a signal level of an intermediate frequency portion, which includes frequencies arranged between the lower frequency portion and the higher frequency portion. | 09-30-2010 |
| 20100251324 | RF TERMINATE/PERMIT SYSTEM - There is provided a terminate or permit device that includes an internal circuitry, which discriminates between noise and non-noise transmissions. In one embodiment, the internal circuitry comprises a switch and termination unit (“STU”) with a signal path that is used to terminate and/or permit the upstream bandwidth based on the presence of non-noise transmissions. The internal circuitry also comprises a signal processing unit (“SPU”) with a processing circuit, which is configured to identify the non-noise transmissions from the upstream bandwidth, and to cause the STU to permit the upstream bandwidth based on the presence of the non-noise transmissions. | 09-30-2010 |
| 20100301972 | SELF-TERMINATING COAXIAL CABLE PORT - A circuit for automatically terminating a user port in a coaxial cable system includes a signal path extending from a user-side port toward a supplier-side port, the signal path including a conductor and a ground. The user-side port is adapted to connect to a user device. The circuit further includes a passive signal sampler coupled to the signal path, and a comparator element in communication with the passive signal sampler. The comparator is adapted to compare a line signal on the signal path to a reference signal and generate an output. A switch disposed in the signal path has a first state for terminating the line signal and a second state for passing the line signal. The first state and the second state are responsive to the output generated from the comparator. | 12-02-2010 |
| 20110003558 | COMMUNICATION SYSTEM AND MAINTENANCE METHOD - A maintenance method and system is provided. The method includes providing a device comprising a thru state switch and condition circuits. The device is permanently connected between a feed system and an antenna. The device receives a first control signal and disables a connection between the analyzer and the antenna. The device receives additional control signals and enables conditions. The device generates altered responses of the feed system. The altered responses are associated with the conditions. The altered responses are used to normalize an analyzer and the feed system or troubleshoot a communication system. | 01-06-2011 |
| 20110010749 | FILTER CIRCUIT - A filter for use in a coaxial cable network includes a printed circuit board having first and second opposed major surfaces, and first and second opposing sides. The opposed major surfaces are substantially parallel to a single plane, and are bisected by a longitudinal axis. The first and second opposing sides are substantially parallel to the longitudinal axis. The filter further includes an input terminal and an output terminal connected to the printed circuit board. The input terminal and the output terminal have an axis extending substantially parallel to the longitudinal axis. A signal path is disposed on the printed circuit board and extends from the input terminal toward the output terminal. The filter further includes a plurality of resonator elements fabricated upon the first opposed major surface. In one embodiment, the inductor elements are arranged in series along the signal path defining a footprint of less than 540 square millimeters. The filter passes a first range of frequencies in a provider bandwidth and attenuates a second range of frequencies in a personal data network bandwidth. In one embodiment, the resonator elements are parallel inductor elements and capacitor elements, the inductor elements being etched spiral inductors. | 01-13-2011 |
| 20110075311 | SURGE PROTECTION DEVICE FOR ISOLATING PREMISE DEVICES - A surge protector comprises an internal circuitry configured to isolate a premise device from a surge input. In one embodiment, the internal circuitry can comprise a first signal path and a second signal path that is inductively coupled to the first signal path. Each of the first signal path and the second signal path can comprise windings, such as the windings that are found in an RF transformer. The internal circuitry can also comprise a blocking element, which is coupled to the second signal path so that the blocking element receives the surge input before the premise device. | 03-31-2011 |
| 20110075312 | SURGE PROTECTION DEVICE WITH IMPROVED RESPONSE TIME - A surge protection device with an internal circuitry that protects a premise device from a surge input that arises from a transient event, e.g., a lightning strike. The internal circuitry can comprise a surge path that includes windings, e.g., inductors, and in one embodiment the surge path comprises a first winding and a second winding that is coupled in series to the first winding. The internal circuitry can also comprise a blocking element that is positioned relative to the surge path so that the blocking element receives the surge input before the premise device, wherein the blocking element can be selected so as to isolate the premise device from the surge input. | 03-31-2011 |
| 20110138440 | Downstream output level tilt compensation device between CATV distribution system and CATV user - A downstream bandwidth output level tilt compensation device that can be inserted into a signal transmission line of a CATV system on a premise of a user. The device includes first and second filters to output first and second band signals, respectively. Detectors output a measurement representative of a characteristic (e.g., RF power) in the first and second band signals, respectively. A comparator uses the measurements from the detectors to determine a correction signal. A variable slope adjusting circuit is provided to adjust the gain slope of the downstream bandwidth responsive to the correction signal. The device includes a third filter after the variable slope adjusting circuit to pass a third band signals corresponding to the first and second signals. A second comparator uses measurements from the third signal to adjust the connection signal. | 06-09-2011 |
