Abstract: A transimpedance amplifier system (TIA) for stabilizing high gain and high frequency signals while minimizing parasitic capacitance effects on the transimpedance amplifier system. The TIA includes an operational amplifier having a first input terminal, a second input terminal, and an output terminal. The TIA also includes a signal generating device operatively connected with the first input terminal of the operational amplifier. The TIA also includes a T-network feedback architecture operatively connected with the operational amplifier at the first input terminal of the operational amplifier and the output terminal of the operational amplifier. The T-network feedback architecture has a first impedance network and a second impedance network. The T-network feedback architecture is configured to suppress parasitic capacitance from the transimpedance amplifier system.

Abstract: A method of transmitting data to a plurality of receivers is provided wherein an identifier is assigned to each of the receivers that cannot be ascertained once assigned, a subset of receivers is selected to receive data, and an encrypted board identifier corresponding to each receiver of the subset is transmitted, wherein a receiver of the subset becomes enabled upon receipt of the encrypted board identifier and data is transmitted with an indication that the data is only for receivers that have been enabled.

Abstract: Receiving packets of digital data includes detecting a packet header of a received packet, determining a calculated check value for the received packet, and comparing the calculated check value with a transmitted check value provided with the packet. The packet may be discarded in response to the calculated check value not being equal to the transmitted check value. The transmitted and calculated check values may be CRC values having two or four bytes. The data may be provided via digitized data superimposed onto a video signal.