摘要:
A communication circuit for communication over a voltage isolation barrier, the communication circuit including a pulse driven transformer coupled to a current sensing input, wherein information is transferred in the current domain and wherein during the information transfer, the receiver input is made low ohmic, a current pulse transformer including a primary winding, a core, and a secondary winding, a resistor in parallel with the secondary winding, a current sensor having a low ohmic input to receive a pulse from the secondary winding, and a signal processing unit to extract information from the received pulse.
摘要:
The present invention generally relates to a system for indicating signal strength in a transmitting cable (8). Particularly the invention can provide an estimate of the incoming signal strength by illuminating the cable in various colors. Said cable system comprises a transmitter (9) is required to produce a compromise position to receive appropriate signals, a receiver (6) wherein device can be receive signal by tuning a tuner (4) to an appropriate frequency. A transmitting cable (8) connects the transmitter (9) and the receiver (6) along with a lamp control circuit (7) in between. The transmitting cable (8) is wrapped around with a transparent cover (13) or a different color electroluminescent material to illuminate the transmitting cable (8) based on signal strength received at the receiver (6). The lamp control circuit (7) comprises of a microprocessor unit, which controls either lamps (10) or voltage for the electroluminescent material to display the signal strength in the transmitting cable (8).
摘要:
Techniques for voltage regulation in a system, method, and apparatus are described herein. An apparatus for voltage regulation in a wireless power receiver may include a rectifier having an output voltage. The apparatus may also include voltage compensation logic including at least one capacitor to reduce voltage variation of the output voltage from the rectifier.
摘要:
The various embodiments herein provide a system and method to provide a high speed data transmission over a wired network. The system comprising a transmitting end, a first electrical circuitry provided at the transmitting end to generate an electrical disturbance according to an input signal received from a source network, a receiving end, a second electrical circuitry provided at the receiving end to detect a signal disturbance, to amplify the signal and to regenerate the transmitted signal data from the received signal and a wired network interconnecting the transmitting end and the receiving end. The generated disturbance is transmitted over the wired network using a single conductor as positive spikes, negative spikes or as signals closely resembling the input signal. The receiving end employs a line disturbance detection scheme without necessarily requiring a common ground connection.
摘要:
In a method for adjusting the modulation of information onto subcarriers transmitted on a network, a first modulation profile of a network node on the network is set a first density. A plurality of messages in support of a link maintenance operation (LMO) on the network are monitored. The first modulation profile of the network node is updated to a second modulation profile having a second density. The updating is based on the monitored messages. Interference is detected by determining that a link between the first network node and a second network node on the network is not conveying a predetermined class of messages correctly. The first network node is set to a third modulation profile more robust than the first and second modulation profiles in response to the detected interference. The third modulation profile is common to each network node on the network.
摘要:
The various embodiments herein provide a system and method to provide a high speed data transmission over a wired network. The system comprising a transmitting end, a first electrical circuitry provided at the transmitting end to generate an electrical disturbance according to an input signal received from a source network, a receiving end, a second electrical circuitry provided at the receiving end to detect a signal disturbance, to amplify the signal and to regenerate the transmitted signal data from the received signal and a wired network interconnecting the transmitting end and the receiving end. The generated disturbance is transmitted over the wired network using a single conductor as positive spikes, negative spikes or as signals closely resembling the input signal. The receiving end employs a line disturbance detection scheme without necessarily requiring a common ground connection.
摘要:
Systems and methods are described for providing a throughput of 10 Gbps or more in a coaxial cable network and which operate at high frequencies above the existing services on home coax in the range 2 GHz to 10 GHz, or more. The network uses a wide signal bandwidth, in the range, for example, of 8 GHz. Operating above the CATV band and satellite services, the network coexists with these services without mutual interference. The system could be used in networking systems, such as MoCA 3 and Access systems. This is achieved by using a splitter with a low loss and low isolation in the 2 - 10 GHz range at the point-of entry (POE) of the network signal. Alternatively, an active node to provide a signal booster or a repeater function at the point-of-entry (POE) can be used.
摘要:
A coupling circuit for a power line communications system for coupling information signals from a transmitter unit to a power line and for coupling information signals from the power line to a receiver unit. The coupling circuit includes: (a) a ferrite core coupler for isolating the transmitter unit or the receiver unit from a power line and for coupling information signals from the transmitter unit to the power line and from the power line to the receiver unit, (b) a bandpass filter for selectively passing information signals from the transmitter unit to the power line and from the power line to the receiver unit, and (c) an impedance matching pad for matching the impedance of the transmitter unit to the impedance at an outlet connected to the power line and to which the transmitter unit is connected and the receiver unit to the impedance at an outlet connected to the power line and to which the receiver unit is connected.
摘要:
A system and method for transmitting a radio frequency (RF) signal in a RF bandwidth over a low bandwidth medium (60), e.g., in-building cabling, which has a transmission bandwidth below the RF bandwidth. The system (50) has a unit (52) for receiving the RF signal and global reference oscillator (66) for distributing a global reference tone of high stability to the entire system (50). Local oscillators (58 and 86) are controlled by adjustement signals derived from this global reference tone to deliver RF reference tones of high stability required for mixing the RF signal to obtain an intermediate frequency (IF) signal which is fed through the low bandwidth medium (60). The global reference tone is preferably delivered through the same low bandwidth medium (60) to desired locations, such as remote coverage sites in a network for cellular communications, cordless telephony, local RF communications, interactive multi-media video, and high bit-rate communications.