Patent
Delay control for frame-based transmission of data
Brian C. Edem,Debra J. Worsley +1 more
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TLDR
In this article, the packet data is re-timed, e.g., by using a FIFO to output the data nibble-wise as required by the frame structure.Abstract:
A network for transferring packet data in a frame structure, preferably mixed with isochronous data. The frame structure is a continuously repeating structure, with each frame having a number of time slots. Certain ones of the time slots are available for transmitting packet data. The packet data is re-timed, e.g., by using a FIFO to output the data nibble-wise as required by the frame structure. Information about variability in delays at the transmitting end is sent to the receiving end. The receiving end uses the information to eliminate the variability, such as by a variable delay FIFO, thus restoring/recreating the original packet and IFG timing. Preferably, the frame structure is translated to and from a packet structure to permit the present invention to be used with previously available packet circuitry such as a media access controller and a hub repeater circuit.read more
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References
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Patent
Multiplexed digital packet telephone system
TL;DR: In this paper, an efficient speech compression algorithm is applied to transform a sequence of digitized speech samples into a much shorter sequence of compression variables, which are further processed to construct a minimum-length bit string, and an identifying header is appended to form a packet.
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Computer communications subsystem using an embedded token-passing network
TL;DR: In this article, a high performance terminal input/output subsystem for connecting a multiplicity of user devices to a multi-user computer includes a single-board host adapter which is mounted in a single bus slot in the host computer card cage and provides the communication between the subsystem and the host computers.
Patent
Method and apparatus for communicating a plurality of asynchronous signals over a digital communication path
TL;DR: In this paper, each of a plurality of information signals is digitized at a digitizing rate derived from a component of the signal, and the received data packets for each signal are then converted to an analog form to reconstruct the original information signals.
Patent
Distributed switching system
Felix V. Diaz,Jack H. Stanley +1 more
TL;DR: In this paper, a switching system configured in a ring topology is disclosed, which causes one or more 125 microsecond isochronous frames (20) to circulate in the ring at any given instant in time.
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Method of providing reserved bandwidth in a dual bus system
TL;DR: In this paper, the authors proposed a method for reserved bandwidth in a system having dual unidirectional and oppositely oriented buses, where each station making a request for bandwidth is allocated a part of the reserved bandwidth.