Multiplex communications – Wide area network – Packet switching
Patent
1993-05-07
1995-10-10
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
34082508, 367 23, 370 941, G08C 1508
Patent
active
054576881
ABSTRACT:
A system for acquiring data from a plurality of analog signal sources inces a multiple-channel asynchronously operating first-stage subsystem each channel of which outputs composite digital representations of the analog signal, which in turn are passed to a digital processor in which the data are used by a second-stage subsystem (40). The second-stage subsystem (40) has a plurality of signal processing units (48), each having an input coupled to a different output channel of the first-stage subsystem. Each of the signal processing units includes a first buffer (48-2). The system also includes a plurality of data processing units (52, 54). The data processing units have an input coupled to an output of a first buffer of the signal processing units. Each of the data processing units operates under an operating program providing formatting into a data packet having a predetermined format. An arbitration and transmission unit (44) has an input coupled to the data processing units and sequentially polls then so as to receive a data packet from a data processing unit having a data packet available. The transmission unit buffers prior to a transmission of the data packet. Each of the signal processing units generates a status signal in response to the associated first buffer reaching a predetermined partially full condition. The transmission unit is responsive to the generation of status signals for interrupting the sequential polling. As a result, a possibility of data overruns and a loss of transducer data is substantially eliminated.
REFERENCES:
patent: 4796025 (1989-01-01), Farley et al.
patent: 5101199 (1992-03-01), Suzuki
patent: 5237322 (1993-08-01), Heberle
Lall Prithvi C.
McGowan Michael J.
Oglo Michael F.
Safourek Benedict V.
The United States of America as represented by the Secretary of
LandOfFree
Signal processor having multiple paralleled data acquisition cha does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal processor having multiple paralleled data acquisition cha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processor having multiple paralleled data acquisition cha will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2315353