Belkin International, Inc.

Randy King

Parker J Voll

Ronald Moffatt

Jack E Priebe

Vannin Gale

Scott Jackson

Kelly Ferdman

Jeong Lee

Wesley Kung

Scott M Borden

James Foo

Vincent J Ferrer

Jerry (Ngai-Chiu) Wong

Jerry Ngai-Chiu Wong

In some embodiments, a method of identifying at least one transmission frequency in a set of carrier frequencies can include: (a) determining a first signal strength for each carrier frequency in the set of carrier frequencies; (b) choosing a first transmission frequency from the set of carrier frequencies at least partially based on the first signal strength of each of the carrier frequencies of the set of carrier frequencies; and (c) broadcasting electrical signals over the first transmission frequency. Other embodiments are disclosed herein.

Method of selecting and broadcasting over a transmission frequency and device for the same

A high speed video switch in a KVM system using discrete Radio Frequency (RF) switch circuits. The RF switch circuits are configured into a multiplexed circuit to route video signals from a selected host computer to a target monitor. Voltage converters are used to provide control signals of the proper voltage to the RF switch circuits. Peaking operational amplifiers are used to compensate for the roll-off effect caused by the video connectors. An On Screen Display (OSD) switch using the RF switches is used to rapidly switch between the OSD data and host computer video for display to the target operator control center monitor.

Video switching device configured to provide at least part of a first video component from a first video source and second video component to a target video destination

KVM video and OSD switch

An electrical power conditioning apparatus in accordance with the present invention generally includes an electrical input for receiving power from the power source, a surge suppression circuit and a plurality of electrical outlets. A plurality of parallel channels connect the input to at least one of the plurality of outlets. At least one of the plurality of channels includes a filter circuit and a current sensor circuit for measuring the current through the channel. One or more displays are electrically connected to the current measuring to a visual indication of voltage and current measurements.

Power line conditioner

A distance extender () for increasing a distance between a first device () and a second device () in electrical communication with the first device includes an electrical cable () electrically coupled between the first device and the second device, a first subsystem () electrically coupled to the first end of the electrical cable, and a second subsystem () electrically coupled to the second end of the electrical cable. The electrical cable includes a first end (), a second end (), and a plurality of wires extending between the first end and the second end. The plurality of wires includes a first wire, the first device generates a data signal and provides an electrical power signal, and the data signal and the electrical power signal are simultaneously transmitted between the first device and the second device over the first wire.

Distance extender

A system for estimating a length of a conductor () having a first end () and a second end () includes a device () capable of placing an electric signal on the conductor, an impedance element () that maintains the electric signal within a predetermined voltage range, and a timer (). The device places the electric signal on the conductor such that the electric signal travels along the conductor from the first end to the second end and back to the first end. The timer determines a time required for the electric signal to travel along the conductor from the first end to the second end and back to the first end. The length of the conductor may be estimated based on the time. A compensation factor may be determined based on the length or the time, and may be used to compensate for signal attenuation in the conductor.

KVM switch configured to estimate a length of a conductor

Distance extender and method making use of same

Growing community of inventors

Rochester, NY, United States of America

Randy King