EP0564943B1
Expired / Lapsed
EP
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Multiplex transmission apparatus
Assignee: Mazda Motor Corp
•
Filing: 1993-03-29
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Granted: 2001-06-13
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Expires: 2013-03-29
Abstract
No abstract record available.
Inventors
- 👤 Seiji c/o Mazda Motor Corporation Hirano
- 👤 Yoshikazu c/o Mazda Motor Corporation Nobutoki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 08:46
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; B; B60; B60R; B60R16/00; B60R16/02; B60R16/03; B60R16/0315; B60R2016/0322
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
343 words
A multiplex transmission apparatus having: a plurality of control nodes (13-31) connected, in a
decentralized manner, to a common multiplex transmission
path comprising multiplex transmission lines (11, 12)
having a low-speed transmission path line (12) and a
high-speed transmission path line (11), said plurality of control nodes (13-31) including at
least one control node of a first type (13-24) capable of
performing an operation process and at least one control
node of a second type (25-31) incapable of performing the
operation process, the plurality of control nodes of said
first type (13-24) being classified into: nodes (22-24; 48) connected to the low-speed transmission
path line (12), nodes(17-21; 54) connected to the high-speed transmission
path line (11) and nodes (13-16; 48, 54) connected to both the low-speed
transmission path line (12) and the high-speed transmission
path line (11), communication control means (41, 46, 51) located in each
of said plurality of control nodes (13-31) for performing
a communication function dependent upon the type of node;
and operation process means (46, 52) located in said control
node of said first type (13-24) performing a predetermined
operation process, wherein the communication control means (41, 46, 51)
controls signal communication between the multiplex
transmission lines (11, 12) and the operation process
means (46, 52) and said operation process means (46, 52)
performs an operation generating a first control signal
(SA', SA") based on control information (DV, DVI) received
from the multiplex transmission lines (11, 12) while
said control node of said second type (25-31) generates a
second control signal (SA) based on control information
(DQ) received from the multiplex transmission lines (11,
12) without performing an operation process, wherein a third control node (60) of said second type
(25-31) is solely connected to only one path line of the
low-speed and high-speed transmission path lines (11, 12)
by a connecting end portion (61), and in that one control
node (24) of the first type (13-24) is connected to said
only one path line and has a function for processing
operation required by said third control node (60).
Claim 2
Dependent Claim
62 words
The apparatus according to claim 1, wherein the nodes (22-24; 48) connected to the low-speed
transmission path line (12) comprise: a single controller (46) to transmit control information
(DZ) to and receive control information (DV) from the low-speed transmission path line (12) and to perform a
predetermined operation process; and an input-output portion (47) to input and output a predetermined
control signal.
Claim 3
Dependent Claim
73 words
The apparatus according to claim 1, wherein the nodes (17-21; 54) connected to the high-speed
transmission path line (11) comprise: a transceiver (51) to transmit control information (DV')
to and receive control information (DV') from the high-speed
transmission path line (11) an input-output portion
(53) to input and output a control signal; and an operation controller (52) located between the transceiver
(51) and said input-output portion (53) to perform
a predetermined operation process.
Claim 4
Dependent Claim
31 words
The apparatus according to claim 1, wherein said one control node (24) of the first type (13-24)
and the third control node (60) are connected to the
low-speed transmission path line.
Claim 5
Dependent Claim
35 words
The apparatus according to claim 1, wherein there exist a plurality of control nodes of the
plurality of control nodes (13-31) which are connected to
both the low-speed and high-speed transmission path lines
(11, 12).
Claim 6
Dependent Claim
47 words
The apparatus according to claim 1, wherein said signals include at least information identification
data (ID) and transmission information data (DT) flowing in
said one path line of the low-speed and high-speed transmission
path lines that connects the control node (24)
and the third control nodes (60).
Claim 7
Dependent Claim
18 words
The apparatus according to claim 1, wherein the third control node (60) has a coding or
decoding capability.
Claim 8
Dependent Claim
18 words
The apparatus according to claim 1, wherein the third control node (60) has a modulating or
demodulating capability.
Claim 9
Dependent Claim
20 words
The apparatus according to claim 1, wherein the third control node (60) has an A/D converting
or D/A converting capability.
References Cited (Backward Citations)
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