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US5532856A Expired / Lapsed US ⏱️ 0.0 years remaining

Planar optical mesh-connected tree interconnect network

Assignee: NEC Corp
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Filing: 1994-06-30
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Granted: 1996-07-02
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Expires: 2014-06-30
📄 Original PDF 🌐 Google Patents

Abstract

Abstract A mesh-connected tree (MCT) interconnect topology network which is a two-dimensional interconnect topology combining aspects of a conventional tree-network and a two-dimensional nearest-neighbor mesh network is implemented as a planar optical interconnect network.

Inventors

  • 👤 Yao Li
  • 👤 Richard A. Linke
  • 👤 Yuh-Dauh Lyuu
  • 👤 Kenichi Kasahara
  • 👤 Shigeru Kawai
  • 👤 Keiichi Kubota

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 13:47
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/43; H; H04; H04Q; H04Q11/00; H04Q11/0001

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 172 words
A planar optical mesh-connected tree interconnect network comprising: a planar array of mesh-connected leaf nodes, each leaf node comprising an optical transmitter means and an optical receiver means; parent nodes, each parent node being disposed in the plane of said planar array and intermediate an associated pair of leaf nodes, each parent node comprising optical transmitter means and optical receiver means, said parent nodes being associated with leaf nodes in accordance with a mesh-connected tree structure; means for causing transmitter means of a preselected leaf node or preselected parent node to transmit an optical signal to receiver means at a predetermined leaf node or predetermined parent node after reflection at a reflecting plane for communicating between said preselected node and said predetermined node; and an array of micro-optical means disposed in the path of said optical signal, where a first layer of material is disposed between said nodes and said array of micro-optical means and a second layer of material is disposed between said array of micro-optical means and said reflecting plane.
Claim 2
Dependent Claim 172 words
A planar optical mesh-connected tree interconnect network comprising: a planar array of mesh-connected leaf nodes, each leaf node comprising an optical transmitter means and an optical receiver means; parent nodes, each parent node being disposed in the plane of said planar array and intermediate an associated pair of leaf nodes, each parent node comprising optical transmitter means and optical receiver means, said parent nodes being associated with leaf nodes in accordance with a mesh-connected tree structure; means for causing transmitter means of a preselected leaf node or preselected parent node to transmit an optical signal to receiver means at a predetermined leaf node or predetermined parent node after reflection at a reflecting plane for communicating between said preselected node and said predetermined node; and an array of micro-optical means disposed in the path of said optical signal, where a first layer of material is disposed between said nodes and said array of micro-optical means and a second layer of material is disposed between said array of micro-optical means and said reflecting plane.
Claim 3
Dependent Claim 21 words
A planar optical mesh-connected tree interconnect network as set forth in claim 1, where said micro-optical means comprise gratings and lenses.
Claim 4
Dependent Claim 19 words
A planar optical mesh-connected tree interconnect network as set forth in claim 2, where said lenses comprise planar microlenses.
Claim 5
Dependent Claim 20 words
A planar optical mesh-connected tree interconnect network as set forth in claim 2, where said lenses comprise Freznel zone lenses.
Claim 6
Dependent Claim 29 words
A planar optical mesh-connected tree interconnect network as set forth in claim 1, where said first layer of material and said second layer of material comprise the same material.
Claim 7
Dependent Claim 28 words
A planar optical mesh-connected tree interconnect network as set forth in claim 1, where said first layer of material and said second layer of material comprise different materials.
Claim 8
Dependent Claim 35 words
A planar optical mesh-connected tree interconnect network as set forth in claim 1, where said first layer of material and said second layer of material are selected from the group consisting of glass and quartz.
Claim 9
Dependent Claim 23 words
A planar optical mesh-connected tree interconnect network as set forth in claim 1, where said transmitter means comprise vertical cavity surface emitting lasers.
Claim 10
Dependent Claim 22 words
A planar optical mesh-connected tree interconnect network as set forth in claim 1, where said transmitter means comprise vertical cavity vertical-to-surface-transmission-electro-photonic devices.
Claim 11
Dependent Claim 27 words
A planar optical mesh-connected tree interconnect network as set forth in claim 1, where said leaf nodes and said parent nodes are fabricated by VLSI processing technology.
Claim 12
Dependent Claim 230 words
A planar optical mesh-connected tree interconnect network comprising: a planar substrate comprising a linear array of mesh-connected leaf nodes, each leaf node comprising optical transmitter means and optical receiver means, and parent nodes, each parent node being disposed intermediate an associated pair of leaf nodes in accordance with a tree structure, each parent node comprising optical transmitter means and optical receiver means; a first layer of material having a first surface in juxtaposition with said planar substrate; mirco-optical means disposed at an oppositely disposed surface of said first layer of material; and a second layer of material having at a first surface additional micro-optical means, said second layer of material being disposed in juxtaposition with said first layer so that said micro-optical means and said additional micro-optical means are disposed in predetermined relation with respect to each other, an oppositely disposed surface of said second layer comprising a reflecting surface whereby said leaf nodes and then said parent nodes are disposed for causing an optical signal transmitted from optical transmitter means of a presclected node to traverse said first layer of material, said micro-optical means, said additional mirco-optical means, said second layer of material and be reflected at said reflecting surface, traverse said second layer of material, said additional micro-optical means, said micro-optical means, said first layer of material and be received at optical receiver means of a predetermined node.
Claim 13
Dependent Claim 230 words
A planar optical mesh-connected tree interconnect network comprising: a planar substrate comprising a linear array of mesh-connected leaf nodes, each leaf node comprising optical transmitter means and optical receiver means, and parent nodes, each parent node being disposed intermediate an associated pair of leaf nodes in accordance with a tree structure, each parent node comprising optical transmitter means and optical receiver means; a first layer of material having a first surface in juxtaposition with said planar substrate; mirco-optical means disposed at an oppositely disposed surface of said first layer of material; and a second layer of material having at a first surface additional micro-optical means, said second layer of material being disposed in juxtaposition with said first layer so that said micro-optical means and said additional micro-optical means are disposed in predetermined relation with respect to each other, an oppositely disposed surface of said second layer comprising a reflecting surface whereby said leaf nodes and then said parent nodes are disposed for causing an optical signal transmitted from optical transmitter means of a presclected node to traverse said first layer of material, said micro-optical means, said additional mirco-optical means, said second layer of material and be reflected at said reflecting surface, traverse said second layer of material, said additional micro-optical means, said micro-optical means, said first layer of material and be received at optical receiver means of a predetermined node.
Claim 14
Dependent Claim 28 words
A planar optical mesh-connected tree interconnect network as set set forth in claim 11, where said leaf nodes and said parent nodes comprise vertical cavity surface emitting lasers.
Claim 15
Dependent Claim 27 words
A planar optical mesh-connected tree interconnect network as set forth in claim 11, where said leaf nodes and and said parent nodes comprise vertical cavity vertical-to-surface-transmission-electro-photonic devices.
Claim 16
Dependent Claim 26 words
A planar optical mesh-connected tree interconnect network as set forth in claim 11, which said micro-optical means and said additional micro-optical means comprise lenses and gratings.
Claim 17
Dependent Claim 19 words
A planar optical mesh-connected tree interconnect network as set forth in claim 14, wilere said lenses comprise planar microlenses.
Claim 18
Dependent Claim 20 words
A planar optical mesh-connected tree interconnect network as set forth in claim 14, where said lenses comprise Freznel zone lense.
Claim 19
Dependent Claim 35 words
A planar optical mesh-connected tree interconnect network as set forth in claim 14, wilere said first layer of material and said second layer of material are selected from the group consisting of glass and quartz.
Claim 20
Dependent Claim 40 words
A planar optical mesh-connected tree interconnect network as set forth in claim 14, where said leaf nodes and said parent nodes are disposed for symmetric transmitted optical signal angles and hopping distances between said presclected node and said predetermined node.
Claim 21
Dependent Claim 27 words
A planar optical mesh-connected tree interconnect network as set forth in claim 14, where said leaf nodes and said parent nodes are fabricated by VLSI processing technology.
Claim 22
Dependent Claim 151 words
A planar optical mesh-connected tree interconnect network comprising: a planar array of mesh-connected leaf nodes, each leaf node comprising an optical transmitter means and an optical receiver means; parent nodes, each parent node being disposed in the plane of said planar array and intermediate an associated pair of leaf nodes, each parent node comprising optical transmitter means and optical receiver means, said parent nodes being associated with leaf nodes in accordance with a mesh-connected tree structure; and means for causing transmitter means of a preselected leaf node or preselected parent node to transmit an optical signal to receiver means at a predetermined leaf node or predetermined parent node after reflection at a reflecting plane for communicating between said preselected node and said predetermined node, where said leaf nodes and said parent nodes are disposed for symmetric transmitted optical signal angles and hopping distances between said preselected node and said predetermined node.
Claim 23
Dependent Claim 151 words
A planar optical mesh-connected tree interconnect network comprising: a planar array of mesh-connected leaf nodes, each leaf node comprising an optical transmitter means and an optical receiver means; parent nodes, each parent node being disposed in the plane of said planar array and intermediate an associated pair of leaf nodes, each parent node comprising optical transmitter means and optical receiver means, said parent nodes being associated with leaf nodes in accordance with a mesh-connected tree structure; and means for causing transmitter means of a preselected leaf node or preselected parent node to transmit an optical signal to receiver means at a predetermined leaf node or predetermined parent node after reflection at a reflecting plane for communicating between said preselected node and said predetermined node, where said leaf nodes and said parent nodes are disposed for symmetric transmitted optical signal angles and hopping distances between said preselected node and said predetermined node.

References Cited (Backward Citations)

US5315425A Cited
US5351146A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-07-02 2000-01-01 2000-07-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-07-02 2004-01-01 2004-07-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-07-02 2008-01-01 2008-07-02 $7700.00 Window Closed / Lapsed

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