Aspects of methods and systems for frequency multiplexing suitable for Data Over Cable Service Interface Specification (DOCSIS) are provided. A system for multiplexing signals according to frequency comprises a DOCSIS port interface, an upstream interface, a downstream interface, and a circulator subsystem. The DOCSIS port interface comprises a plurality of channel filters. The upstream interface is operably coupled to a first channel filter of the plurality of channel filters, and the downstream interface is operably coupled to a second channel filter of the plurality of channel filters. The circulator subsystem is able to direct a first signal from the upstream interface to the DOCSIS port interface and is able to direct a second signal from the DOCSIS port interface to the downstream interface.

An optical local area network includes a passive optical distribution fabric interconnecting a plurality of nodes including a first node and a plurality of remaining nodes, a hub that includes the first node and a control module, and a client network adapter coupled to each of the remaining nodes for responding to the control module. The control module controls timing for each of the client network adapters to transmit signals over the passive optical distribution fabric and distribution of signals to each of the nodes.

Aspects of the disclosure relate to devices, wireless communication apparatuses, methods, and circuitry for a t-switch with gate shunting. One aspect is an apparatus including a first differential switch having a control input. The apparatus further includes a second differential switch coupled to the first differential switch, the second differential switch a control input. A shunt capacitor is coupled between a first output and a second output of the first differential switch, and a first input and a second input of the second differential switch. A first shunt switch having a control input, an input, and an output has the input and the output coupled to the control input of the first differential switch. A second shunt switch having a control input, an input, and an output, has the input and the output coupled to the control input of the second differential switch.

In one embodiment, an optical network system including a plurality of optical switches configured to switch beams of light which are modulated to carry information, a plurality of host computers comprising respective optical network interface controllers (NICs), optical fibers connecting the optical NICs and the optical switches forming an optically-switched communication network, over which optical circuit connections are established between pairs of the optical NICs over ones of the optical fibers via ones of the optical switches, the optically-switched communication network which including the optical NICs and the optical switches.

Aspects of the disclosure relate to devices, wireless communication apparatuses, methods, and circuitry for a t-switch with gate shunting. One aspect is an apparatus including a first differential switch having a control input. The apparatus further includes a second differential switch coupled to the first differential switch, the second differential switch a control input. A shunt capacitor is coupled between a first output and a second output of the first differential switch, and a first input and a second input of the second differential switch. A first shunt switch having a control input, an input, and an output has the input and the output coupled to the control input of the first differential switch. A second shunt switch having a control input, an input, and an output, has the input and the output coupled to the control input of the second differential switch.

A system and method are provided for wireless data broadcasting. The system provides a hub for broadcasting data wirelessly to a plurality of end devices, such as light fixtures, and a plurality of nodes for retrieving at least a portion of the data broadcasted from the hub. Each node is associated with at least one corresponding end device, and transmits data retrieved to the end device. A method is provided for broadcasting the data using the system. The method includes interrogating the nodes and determining what data is required by the corresponding end devices. The hub then packetizes, in RF packets, the required data and transmits data to each of several nodes.

Aspects of the disclosure relate to devices, wireless communication apparatuses, methods, and circuitry for a t-switch with gate shunting. One aspect is an apparatus including a first differential switch having a control input. The apparatus further includes a second differential switch coupled to the first differential switch, the second differential switch a control input. A shunt capacitor is coupled between a first output and a second output of the first differential switch, and a first input and a second input of the second differential switch. A first shunt switch having a control input, an input, and an output has the input and the output coupled to the control input of the first differential switch. A second shunt switch having a control input, an input, and an output, has the input and the output coupled to the control input of the second differential switch.

An optical local area network includes a passive optical distribution fabric interconnecting a plurality of nodes including a first node and a plurality of remaining nodes, a hub that includes the first node and a control module, and a client network adapter coupled to each of the remaining nodes for responding to the control module. The control module controls timing for each of the client network adapters to transmit signals over the passive optical distribution fabric and distribution of signals to each of the nodes.

An optical local area network includes a passive optical distribution fabric interconnecting a plurality of nodes including a first node and a plurality of remaining nodes, a hub that includes the first node and a control module, and a client network adapter coupled to each of the remaining nodes for responding to the control module. The control module controls timing for each of the client network adapters to transmit signals over the passive optical distribution fabric and distribution of signals to each of the nodes.

A system and method for simultaneously reading a plurality of readable memory-based digital identification devices, including: a host microcontroller; and a plurality of readable memory-based digital identification devices electrically coupled to the host microcontroller in a parallel configuration; wherein the host microcontroller is configured to assert a read prompt to each of the plurality of the plurality of readable memory-based digital identification devices during a same clock cycle; wherein each of the plurality of readable memory-based digital identification devices is configured to send a response to the host microcontroller in a same clock cycle; and wherein the host microcontroller is configured to capture identification data from each of the plurality of readable memory-based digital identification devices in a same clock cycle.