EP0844697A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Connecting cables, communication devices and communication methods
Assignee: Sony Corp
•
Filing: 1997-11-13
•
Granted: —
•
Expires: 2017-11-13
Abstract
Abstract In a 6-pin cable according to the IEEE-1394 standard, two power lines (11) and two pairs of signal conductors (12,13) are connected to a head part (1A) provided with six electrical joints (not shown) corresponding to six conductors, consisting of the two power lines (11) and the four signal conductors (12,13). Ferrite beads (14,15) each forming a closed magnetic circuit around one pair of the signal conductors (12,13) are provided. As a result, crosstalk between the signal conductors (12,13) in a common mode is inhibited.
Inventors
- 👤 Takahiro c/o Intel. Prop. Dep. Fujimori
- 👤 Kazuo c/o Intel. Prop. Dep. Yoshino
- 👤 Yasuo c/o Intel. Prop. Dep. Kasagaya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 00:11
CPC Classifications
H; H04; H04L; H04L25/00; H01; H01R; H01R13/00; H01R13/66; H01R13/719; H01R13/646; H01R13/6461
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
59 words
A connecting cable provided with at least two
pairs of signal conductors each pair of which is provided
with two conductors, comprising: closed magnetic circuit means in which an
independent closed magnetic circuit respectively
interlinked with each pair of at least two pairs of signal
conductors is formed by material provided with
predetermined magnetic reluctance and high magnetic
permeability.
Claim 2
Dependent Claim
16 words
A connecting cable according to Claim 1, wherein: said connecting cable complies with an IEEE-1394
standard.
Claim 3
Dependent Claim
22 words
A connecting cable according to Claim 1, wherein: a signal conductor provided with said two conductors
is a twisted pair signal conductor.
Claim 4
Dependent Claim
17 words
A connecting cable according to Claim 1, wherein: said closed magnetic circuit means is a ferrite bead.
Claim 5
Dependent Claim
24 words
A connecting cable according to Claim 1, wherein: said closed magnetic circuit means is arranged at
both ends of each pair of signal conductor.
Claim 6
Dependent Claim
25 words
A connecting cable according to Claim 1, wherein: said closed magnetic circuit means is arranged only
at one end of each pair of signal conductor.
Claim 7
Dependent Claim
29 words
A connecting cable according to Claim 1, wherein: said closed magnetic circuit means is integrated so
that any pair of signal conductor is respectively inserted
into a different hole.
Claim 8
Dependent Claim
96 words
A communication device provided with connection
means to which a connecting cable provided with at least
two pairs of signal conductors each pair of which is
provided with two conductors is connected and processing
means for processing a signal to be sent via said
connection means and said connecting cable or a received
signal, wherein: said connection means is provided with a closed
magnetic circuit part in which an independent closed
magnetic circuit interlinked with two conductors
corresponding to each signal conductor is formed material
provided with predetermined magnetic reluctance and high
magnetic permeability is provided.
Claim 9
Dependent Claim
20 words
A communication device according to Claim 8,
wherein: said connection means is a connecting socket
according to said IEEE-1394 standard.
Claim 10
Dependent Claim
17 words
A communication device according to Claim 8,
wherein: said material provided with high magnetic
permeability is ferrite.
Claim 11
Dependent Claim
89 words
A communication method for processing a signal
to be sent via a connection to which a connecting cable
provided with at least two pairs of signal conductors each
pair of which is provided with two conductors is connected
and said connecting cable or a received signal, wherein: communication is made via said connection provided
with a closed magnetic circuit part in which an independent
closed magnetic circuit interlinked with two conductors
corresponding to each signal conductor is formed by
material provided with predetermined magnetic reluctance
and high magnetic permeability.
Claim 12
Dependent Claim
95 words
A communication device provided with
connection means to which a connecting cable provided with
at least two pairs of signal conductors each pair of which
is provided with two conductors is connected and
processing means for processing a signal to be sent via
said connection means and said connecting cable or a
received signal, wherein: said processing means is provided with a closed
magnetic circuit part in which an independent closed
magnetic circuit interlinked with two conductors
corresponding to each signal conductor is formed by
material provided with predetermined magnetic reluctance
and high magnetic permeability.
Claim 13
Dependent Claim
22 words
A communication device according to Claim 12,
wherein: said processing means processes a signal of a format
according to the IEEE-1394 standard.
Claim 14
Dependent Claim
17 words
A communication device according to Claim 12,
wherein: said material provided with high magnetic
permeability is ferrite.
Claim 15
Dependent Claim
87 words
A communication method in which a signal to be
sent via a connecting cable provided with at least two
pairs of signal conductors each pair of which is provided
with two conductors or a received signal is processed by
a predetermined processing section, wherein: processing is executed by said processing section
provided with a closed magnetic circuit part in which an
independent closed magnetic circuit interlinked with two
conductors corresponding to each signal conductor is
formed by material provided with predetermined magnetic
reluctance and high magnetic permeability.
Claim 16
Dependent Claim
100 words
A communication device provided with
connection means to which a connecting cable provided with
at least two pairs of signal conductors each pair of which
is provided with two conductors is connected and
processing means for processing a signal to be sent via
said connection means and said connecting cable or a
received signal, wherein: a closed magnetic circuit part in which an
independent closed magnetic circuit interlinked with two
conductors corresponding to each signal conductor for
connecting said connection means and said processing means
is formed by material provided with predetermined magnetic
reluctance and high magnetic permeability is provided.
Claim 17
Dependent Claim
22 words
A communication device according to Claim 16,
wherein: said processing means processes a signal of a format
according to the IEEE-1394 standard.
Claim 18
Dependent Claim
17 words
A communication device according to Claim 16,
wherein: said material provided with high magnetic
permeability is ferrite.
Claim 19
Dependent Claim
105 words
A communication method in which a signal to be
sent via a connection to which a connecting cable provided
with at least two pairs of signal conductors each pair of
which is provided with two conductors is connected and said
connecting cable or a received signal is processed by a
predetermined processing section, wherein: a closed magnetic circuit part in which an
independent closed magnetic circuit interlinked with two
conductors corresponding to each signal conductor for
connecting said connection and said processing section is
formed by material provided with predetermined magnetic
reluctance and high magnetic permeability is provided; and communication is made via said conductors.
References Cited (Backward Citations)
No citation records indexed.
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