Title:
PACKET TELEMETRY MULTIPLEXING DEVICE
Document Type and Number:
Japanese Patent JP3896476
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make it possible to output multiplexed packet telemetries within fixed delay time by outputting all remaining packet telemetries less than a transfer frame at the timing of a time-out signal from a timer circuit.
SOLUTION: Two timer circuits are turned to time-out states in the order of 2nd and 1st timer circuits 21a, 20a and 1st and 2nd time-out signals 22, 23 are successively outputted from the 1st and 2nd timer circuits 20a, 21a. At the timing of a succeeding transfer frame, a signal 14 for turning a 1st buffer circuit 2a to a readable state and a signal 15 for turning a 2nd buffer circuit 3a to a readable state are outputted. Then a telemetry transmission circuit 6 inserts PDU parallel data 18 into which a fill packet is inserted into the data part of the transfer frame and transmits the data as transfer frame data 19.
Inventors:
Hiroshi Anekawa
Hiroshi Niimura
Hiroshi Niimura
Application Number:
JP25445597A
Publication Date:
March 22, 2007
Filing Date:
September 19, 1997
Export Citation:
Assignee:
Mitsubishi Electric Corporation
Japan Aerospace Exploration Agency
Japan Aerospace Exploration Agency
International Classes:
H04B7/185; H04L47/56; (IPC1-7): H04L12/56; H04B7/185
Domestic Patent References:
| JP7226773A | ||||
| JP7226774A | ||||
| JP3058543A | ||||
| JP8102725A | ||||
| JP6284149A |
Other References:
三菱電機技報,第68巻,第7号,第47-54頁
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka