What is claimed is:
1. An electrical connector comprising:
a plurality of electrically conductive signal path carrying elements extending from a first end of the connector to a second end of the connector;
each of said signal carrying elements electrically connected to an input and output termination device;
a dielectric substrate horizontally aligned with said signal carrying elements, said substrate having a first portion extending beyond one of said termination devices;
a first conductive trace formed on said substrate and being conductively connected to one of said signal carrying elements, said first conductive trace extending from said one of said signal carrying elements onto first portion of said substrate; and
a second conductive trace formed on said substrate and conductively connected to another of said signal carrying elements, said second conductive trace extending from said another of said signal carrying elements onto said first portion of said substrate, a portion of said first conductive trace and a portion of said second conductive trace being spaced a predetermined distance apart by said substrate at a position on said first portion of said substrate to form a mutual capacitive coupling between said first conductive trace and said second conductive trace whereby crosstalk is reduced between said signal carrying elements.
2. The connector as defined in claim 1, wherein said substrate has a first and second opposed surfaces and said first conductive trace is formed on said first surface and said second conductive trace is formed on said second surface.
3. The connector as defined in claim 2, wherein said overlying portions of said first and second conductive traces have tab-like configurations.
4. The connector as defined in claim 1, wherein said each of said plurality of signal carrying elements includes a conductive trace extending therefrom onto said first portion of said substrate, and each of said conductive traces being capacitively coupled to at least one other of said conductive traces whereby each of said plurality of signal carrying elements is capacitively coupled to another of said plurality of signal carrying elements to such a degree to reduce crosstalk between said plurality of signal carrying elements.
5. The connector as defined in claim 1, wherein two of said signal carrying elements extend across said connector in longitudinally aligned proximity such that capacitive and inductive coupling occurs between said two of said signal carrying elements.
6. The connector as defined in claim 5, wherein said two of said signal carrying elements include conductive paths formed on said substrate.
7. The connector as defined in claim 1, wherein said plurality of signal carrying elements include one elongate conductive contact and one conductive path formed on said substrate.
8. The connector as defined in claim 1, further including a plurality of signal wires forming a plurality of signal pairs and each wire of each signal wire pair is positioned adjacent the other wire of the signal wire pair upon connection to said input termination device such that said signal wires are not sequentially arranged, and said signal carrying elements each include a forward portion forming said output termination which are adapted to be engagable with an element of a plug, and wherein said signal carrying elements are routed such that said forward portion of said signal carrying elements carry signals which are sequentially arranged wherein the connector is compatible with standardized connection devices.
9. An electrical connector comprising:
a connector body;
a plurality of signal carrying elements for carrying electrical signals across the connector between input and output termination devices being positioned in said connector body, said plurality of signal carrying elements including a first and second elongate conductive contacts extending from one end of the connector to another connector end;
a dielectric substrate positioned adjacent said plurality of signal carrying elements;
said plurality of signal carrying elements further including a first and second signal carrying conductive paths formed on said substrate extending between said input and output termination devices; and
said first and second signal carrying conductive paths extending across said connector in mutual longitudinally aligned proximity with said first signal carrying conductive path overlying said second signal carrying conductive path whereby said first signal carrying conductive path is capacitively and inductively coupled to said second signal carrying conductive path to such a degree whereby crosstalk is reduced.
10. The connector as defined in claim 9, wherein said first and second signal carrying conductive paths are disposed between said first and second contacts.
11. The connector as defined in claim 9, wherein first and second contacts each include an intermediate elongate portion, a signal wire termination device forming one of said input devices, and a cantilevered portion forming one of said output devices.
12. The connector as defined in claim 9, wherein said plurality of signal carrying elements includes a third and forth signal carrying conductive paths extending across said connector in mutual longitudinally aligned proximity with said third signal carrying conductive path overlying said forth signal carrying conductive paths whereby said third signal carrying conductive path is capacitive and inductive coupled to said forth signal carrying conductive paths to such a degree that crosstalk is reduced.
13. The connector as defined in claim 9, wherein said plurality of signal carrying elements includes a third and forth conductive contacts and a third and forth signal carrying elements formed on said substrate, said first and second contacts being spaced a distance from third and forth contacts forming a contact free area, said first, second and third and forth signal carrying conductive paths being disposed within said contact free area.
14. The connector as defined in claim 9, wherein said substrate includes a first portion extending beyond said input termination devices, and a first conductive trace formed on said substrate and being conductively connected to one of said signal carrying elements, said first conductive trace extending from said one of said signal carrying elements onto said first portion of said substrate; and
a second conductive trace formed on said substrate and conductively connected to another of said signal carrying elements, said second conductive trace extending from said another of said signal carrying elements onto said first portion of said substrate, a portion of said first conductive trace and a portion of said second conductive trace being spaced a predetermined distance apart by said substrate at a position on first portion of said substrate to form a mutual capacitive coupling between said first conductive trace and said second conductive trace whereby crosstalk is reduced between said signal carrying elements.
15. The connector as defined in claim 9, wherein said one of said first and second signal carrying conductive paths has a width greater then said other of said first and second signal carrying conductive paths.
16. A crosstalk reducing electrical connector comprising:
a plurality of electrically conductive signal path carrying elements extending from a back end of the connector to a front end of the connector;
each of said plurality of signal carrying elements being electrically connected to a signal wire termination device disposed adjacent said back end of said connector for conductively connecting individual signal wires to said plurality of signal carrying elements;
a dielectric substrate positioned adjacent said plurality of signal carrying elements;
a first conductive trace formed on said substrate and being conductively connected to one of said plurality of signal carrying elements, said first conductive trace extending from said one of said plurality of signal carrying elements; and
a second conductive trace formed on said substrate and conductively connected to another of said plurality of signal carrying elements, said second conductive trace extending from said other of said plurality of signal carrying elements, a portion of said first conductive trace and a portion of said second conductive trace being spaced a distance apart by said substrate at a position on said substrate physically remote from said signal carrying elements to capacitively couple said first conductive trace and said second conductive trace and said signal carrying elements conductively connected thereto, whereby crosstalk between signal carrying elements is reduced.
17. The connector as defined in claim 16, wherein said substrate has a first and second opposed surfaces and said first conductive trace is formed on said first surface and said second conductive trace is formed on said second surface, and said portion of said first conductive trace overlies said portion of said second conductive trace.
18. An electrical connector comprising:
a connector body;
a plurality of signal carrying elements for carrying electrical signals across the connector between input and output termination devices being positioned in said connector body, said plurality of signal carrying elements including a first pair of elongate conductive contacts extending from one end of the connector to another end;
a dielectric substrate positioned adjacent said plurality of signal carrying elements;
said plurality of signal carrying elements further including a first and second signal carrying conductive paths formed on said substrate extending from one end of the connector to another end of the connector; and
said first and second signal carrying conductive paths extending across said connector in mutual longitudinally aligned proximity with said first signal carrying conductive paths being spaced apart from and having a width greater than said second signal carrying conductive paths whereby said first signal carrying conductive paths is capacitive and inductive coupled to said second signal carrying conductive paths to such a degree that crosstalk is reduced.
19. An electrical connector comprising:
a dielectric plug housing having a first end and a second end;
a plurality of signal wires forming a plurality of signal pairs disposed within said plug housing, said signal wires longitudinally extending from said first end to said second end of said plug;
a plurality of conductors positioned within said plug housing adjacent said first end and electrically connected with said plurality of signal wires, said conductors being arranged in a mutually spaced apart relationship; and
a first signal wire of said plurality of said signal wires having a first portion extending transversely and crossing over at least one of said plurality of signal wires at a first position located between said second and first end of the plug such that crosstalk is reduced between said plurality of signal pairs.
20. The connector as defined in claim 19, wherein said first signal wire has a second portion extending transversely and crossing back over said second signal wire at a second position located between said first position and said plurality of conductors.
21. The connector as defined in claim 20, further including a first wire retainer engagable with said plurality of signal wires, said first retainer maintaining said plurality of signal wires in a predetermined arrangement, and being positioned within said plug housing.
22. The connector as defined in claim 21, further including a second wire retainer being engagable with said plurality of signal wires for maintaining said plurality of signal wires in a predetermined arrangement, said first wire retainer positioned between said first and second signal wire crossing positions and said second wire retainer being positioned between said second signal wire crossing position and said plurality of conductors.
23. The connector as defined in claim 19, wherein said plurality of signal wires includes a second signal wire, said second signal wire having a portion which extends transversely over at least one of said plurality of signal wires.
24. The connector as defined in claim 19, wherein said plurality of signal wires includes eight signal wires forming four differential signal pairs, said plurality of signal wires being positioned upon entering said second end of said plug such that signal wires forming each of said signal pairs is adjacently positioned.
25. The connector as defined in claim 19, said first signal wire is from one signal pair and said at least one of said plurality of signal wires is from another signal pair.
26. An electrical connector comprising:
a dielectric plug housing having a first end and a second end;
a plurality of signal wires forming a plurality of signal pairs disposed within said plug housing, said signal wires longitudinally extending from said first end to said end of said plug;
a plurality of conductors positioned within said plug housing adjacent said first end and electrically connected with said plurality of signal wires, said conductors being arranged in a mutually spaced apart relationship; and
one of said plurality of signal pairs having a first and second signal wire, said first signal wire crossing over said second signal wire between said second and first end of the plug such that crosstalk is reduced between said one of said plurality of signal pairs and another of said plurality of signal pairs.
27. A jack and plug combination comprising:
a jack including;
a plurality of electrically conductive signal path carrying elements extending from a first end of the connector to a second end of the connector;
each of said signal carrying elements electrically connected to a input and output termination device;
a dielectric substrate in horizontal alignment with said signal carrying elements, and having a first portion extending beyond one of said termination devices;
a first conductive trace formed on said substrate and being conductively connected to one of said signal carrying elements, said first conductive trace extending from said one of said signal carrying elements onto first portion of said substrate; and
a second conductive trace formed on said substrate and conductively connected to another of said signal carrying elements, said second conductive trace extending from said another of said signal carrying elements onto said first portion of said substrate, a portion of said first conductive trace and a portion of said second conductive trace being spaced a predetermined distance apart by said substrate at a position on said first portion of said substrate to form a mutual capacitive coupling between said first conductive trace and said second conductive trace whereby crosstalk is reduced between said signal carrying elements; and
a plug selectively engagable with a plug receiving end of the jack, said plug including;
a dielectric plug housing having a first end and a second end;
a plurality of signal wires forming a plurality of signal pairs disposed within said plug housing, said signal wires longitudinally extending from said first end to said second end of said plug;
a plurality of conductors positioned within said plug housing adjacent said first end and electrically connected with said plurality of signal wires, said conductors being arranged in a mutually spaced apart relationship; and
a first signal wire of said plurality of said signal wires having a first portion extending transversely and crossing over at least one of said plurality of signal wires at a first position located between said second and first end of the plug such that crosstalk is reduced between said plurality of signal pairs, whereby said plug being selectively engagable with said jack such that when said plug is engaged with said jack, crosstalk is reduced in the jack and plug combination to a degree greater than that achieved in said jack and said plug alone.
28. The plug and jack combination as defined in claim 27, wherein said plurality of signal carrying elements includes a first and second signal carrying conductive paths formed on said substrate, and said first and second signal carrying conductive paths extend across the jack in mutual longitudinally aligned proximity with said first signal carrying conductive path being spaced apart from and having a width greater than said second signal carrying conductive path whereby said first signal carrying conductive path is capacitive and inductive coupled to said second signal carrying conductive path to such a degree that crosstalk is reduced.
29. The jack and plug combination as defined in claim 27, wherein said plurality of signal carrying elements include at least one elongate metallic contact and at least one conductive path formed on said substrate.
30. In jack and plug combination:
a jack including;
a jack body;
a plurality of signal carrying elements for carrying electrical signals across said jack positioned in said jack body, said signal carrying elements being routed across said jack such that inductive and capacitive coupling is induced between at least two of said plurality of signal carrying elements to a degree that crosstalk is reduced; and
a plug comprising;
a dielectric plug housing having a first end and a second end;
a plurality of signal wires forming a plurality of signal pairs disposed within said plug housing, said signal wires longitudinally extending from said first end to said second end of said plug;
a plurality of conductors positioned within said plug housing adjacent said first end and electrically connected with said plurality of signal wires, said conductors being arranged in a mutually spaced apart relationship; and
a first signal wire of said plurality of said signal wires having a first portion extending transversely and crossing over at least one of said plurality of signal wires at a first position located between said second and first end of the plug such that crosstalk is reduced between said plurality of signal pairs;
whereby said plug being selectively engagable with said jack such that when said plug is engaged with said jack, crosstalk is reduced in the jack and plug combination to a degree greater than that achieved in said jack and said plug alone.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Hydrostatic transmission (1), comprising
a hydraulic pump (2) and
a hydraulic motor (3) connected by working lines to the hydraulic pump (2),
wherein the working lines at the one connection side of the hydraulic pump (2) and hydraulic motor (3) are part of a high-pressure system and at the other connection side are part of a low-pressure system,
wherein a bypass line (6) connecting the high-pressure system to the low-pressure system is provided, which is connected at branches (6a, 6b) to the high-pressure system and the low-pressure system,
wherein disposed in the bypass line (6) is a nonreturn valve (7), which opens the bypass line (6) when the pressure in the high-pressure system drops below the pressure in the low-pressure system,
wherein a pressure-limiting valve (8) is provided, which in the event of a pressure in the high-pressure system exceeding a specific value opens and enables an exchange of pressure from the high-pressure system to the low-pressure system,
and wherein the circuit portion extending between the branches (6a, 6b) and through the hydraulic motor (3) is longer than half the length of the circuit,
characterized in
that the nonreturn valve (7) and the pressure-limiting valve (8) form a valve combination (9a), which is disposed in an externally accessible manner in a receiving bore (45) of the housing (18) of the hydraulic pump (17).
2. Hydrostatic transmission according to claim 1,
characterized in
that it has a closed or open circuit.
3. Hydrostatic transmission (1), comprising
a hydraulic pump (2) and
a hydraulic motor (3) connected by working lines to the hydraulic pump (2),
wherein the working lines at the one connection side of the hydraulic pump (2) and hydraulic motor (3) are part of a high-pressure system and at the other connection side are part of a low-pressure system,
wherein a bypass line (6) connecting the high-pressure system to the low-pressure system is provided, which is connected at branches (6a, 6b) to the high-pressure system and the low-pressure system,
wherein disposed in the bypass line (6) is a nonreturn valve (7), which opens the bypass line (6) when the pressure in the high-pressure system drops below the pressure in the low-pressure system,
wherein the hydrostatic transmission has an open circuit,
wherein the bypass line (6) is connected in the low-pressure system to the working line (5b), which extends from tank (10) to the hydraulic pump (2), or directly to the tank (10),
and wherein associated with the high-pressure system is a pressure-limiting valve (8),
characterized in
that the nonreturn valve (7) and the pressure-limiting valve (8) form a valve combination (9a) and the valve combination (9a) is disposed in an externally accessible manner in a receiving bore (45) of the housing (18) of the hydraulic pump (17).
4. Hydrostatic transmission according to claim 3,
characterized in
that the, in relation to the hydraulic motor (3), downstream branch (6a) andor the, in relation to the hydraulic motor (3), upstream branch (6b) areis disposed in the vicinity of the hydraulic pump (2) or areis integrated into the housing (18) of the latter, preferably are integrated together with the bypass line (6) in the housing (18).
5. Hydrostatic transmission according to one of claims 1 to 4,
characterized in
that the receiving bore (45) is a stepped bore (45), of which the step together with a valve body (48), which is disposed displaceably in the widened longitudinal portion (45b) of the stepped bore (45) and biased by a valve spring (53) towards the step, forms the nonreturn valve (7), and that disposed in the centre of the valve body (48) is a through-hole (48d), the hole edge of which cooperates with a second valve body (52), which is part of the pressure-limiting valve (8).
6. Hydrostatic transmission according to claim 5,
characterized in
that the second valve body (52) is disposed at the side of the first valve body (48) facing the tapered bore portion (45a), penetrates the through-hole (48d) with a valve body shank (52b) and is connected to a spring collar (54), wherein the associated valve spring (53) is disposed between the first valve body (48) and the spring collar (54).
7. Hydrostatic transmission according to claim 6,
characterized in
that the valve body shank (52b) is screw-connected to the spring collar (54) and screw-adjustable by means of an externally accessible tool application element (55a).
8. Hydrostatic transmission according to one of claims 1 to 7,
characterized in
that the valve combination (9a) is covered by a screw cap (46), which preferably together with a bore (46a) forms a guide for the spring collar (54).