公开(公告)号：US4923267A

公开(公告)日：1990-05-08

申请号：US280045

申请日：1988-12-05

Applicant: Shing-Fong Su

Inventor： Shing-Fong Su

IPC: G02B6/28 ,  G11C19/00 ,  G11C21/00

CPC classification number: G11C21/00 ,  G02B6/28 ,  G11C19/00

Abstract: An optical shift register constructed from at least two optical memory cells connected in cascade, each memory cell having an optical combiner, a 1.times.2 optical switch, a clock, and an optical amplifier, all connected by optical fibers. Each memory cell in the sequence is connected to the next sequential cell by an optical fiber from its output port to the input port of the next sequential cell. The input port of the first optical memory cell serves as the input to the shift register. The output port of the last sequential optical memory cell serves as the output port of the shift register. Each cell is controlled by a clock, all clocks operating at the same rate, but each out of phase with the clock in the next sequential cell. Control signals are provided by said clocks to shift optical pulses from one cell to the next for the enter-shift-exit cycle of the shift register.

Abstract translation: 由从串联连接的至少两个光存储器单元构成的光移位寄存器，每个存储单元具有光合并器，1x2光开关，时钟和光放大器，全部由光纤连接。 序列中的每个存储单元通过光纤从其输出端口连接到下一个顺序单元到下一个顺序单元的输入端口。 第一光存储器单元的输入端口用作移位寄存器的输入。 最后一个顺序光存储单元的输出端口用作移位寄存器的输出端口。 每个单元由时钟控制，所有时钟以相同的速率工作，但每个单元与下一个顺序单元中的时钟异相。 控制信号由所述时钟提供，以将移位寄存器的进位移出口周期的光脉冲从一个单元移位到下一个单元。

公开(公告)号：US4922479A

公开(公告)日：1990-05-01

申请号：US289637

申请日：1988-12-23

Applicant: Shing-Fong Su

Inventor： Shing-Fong Su

IPC: H04Q11/00

CPC classification number: H04Q11/0005

Abstract: An optical time slot interchanger which interchanges one optical pulse at a time in a bit interleaved format. The optical time slot interchanger is constructed from an N-bit serial-to-parallel converter and N optical memory cells, each of said optical memory cells being optically coupled to a parallel output port of said optical-to-serial converter. The ouputs of all N optical memory cells are optically coupled to form a single output port for the time slot interchanger. The optical time slot interchanger has a single input port to receive serially a frame of N optical pulses and a single output to present serially said frame of pulses with interchanged time slots. As a frame of N optical pulses enters the optical time slot interchanger, they are shifted and stored in said optical serial-to-parallel converter under the control of clock means. The optical pulses are then shifted to optical memory cells to await serial output in a time slot interchange under control of other clock signals.

Abstract translation: 光时隙交换器，其以比特交织格式一次交换一个光脉冲。 光时隙交换器由N位串并转换器和N个光存储单元构成，每个所述光存储器单元光耦合到所述光 - 串转换器的并行输出端口。 所有N个光存储器单元的输出被光学耦合以形成用于时隙交换器的单个输出端口。 光时隙交换器具有单个输入端口，以串行地接收N个光脉冲的帧和单个输出，以互换的时隙串行地呈现所述脉冲帧。 由于N个光脉冲的帧进入光时隙交换器，它们在时钟装置的控制下被移位并存储在所述光串行到并行转换器中。 然后在其他时钟信号的控制下，光脉冲被移位到光存储器单元以在时隙交换中等待串行输出。

公开(公告)号：US5612806A

公开(公告)日：1997-03-18

申请号：US258148

申请日：1994-06-10

Applicant: Shing-Fong Su ,  Robert Olshansky

Inventor： Shing-Fong Su ,  Robert Olshansky

IPC: H04J14/02

CPC classification number: H04J14/0298

Abstract: Subcarrier multiplexed acknowledgment tones are used for contention recovery in multiple-access WDM networks with basedband data packets and subcarrier multiplexed control headers. Upon receiving a data message from another node, the receiving node sends a subcarrier acknowledgement tone to the transmitter thus informing the transmitting node that the message has been received. The thoughput of the network is significantly improved. In an alternative embodiment, an acknowledgement is sent from the receiver by impressing a data message on a subcarrier.

Abstract translation: 子载波复用确认音被用于具有基带的数据分组和子载波复用控制报头的多址WDM网络中的争用恢复。 在从另一节点接收到数据消息时，接收节点向发射机发送子载波确认音，从而通知发送节点已经接收到该消息。 网络的吞吐量显着提高。 在替代实施例中，通过在子载波上打印数据消息来从接收器发送确认。

公开(公告)号：US5032010A

公开(公告)日：1991-07-16

申请号：US286592

申请日：1988-12-19

Applicant: Shing-Fong Su

Inventor： Shing-Fong Su

IPC: G02B6/28 ,  H03M9/00

CPC classification number: G02B6/2861 ,  H03M9/00

Abstract: An optical serial-to-parallel converter constructed from at least two optical shift registers connected in cascade, each optical shift register having a 1.times.2 optical switch connected to its output. Each optical shift register in the sequence is optically coupled to the next sequential optical shift register through one output of said 1.times.2 optical switch to the input port of the next sequential optical shift register. The input port of the first optical shift register serves as the input to the optical serial-to-parallel converter, receiving a series of optical pulses. The output ports of each of said third optical switches serve as the output ports of the optical serial-to-parallel converter. The optical shift registers are controlled by two clocks, operating at the same rate, but each out of phase with the other. Control signals are provided by a third clock to output said optical pulses simultaneously from said optical shift registers through said optical output switches to effect an optical serial-to-parallel conversion.

Abstract translation: 由串联连接的至少两个光移位寄存器构成的光串行 - 并行转换器，每个光移位寄存器具有连接到其输出的1x2光开关。 序列中的每个光移位寄存器通过所述1x2光开关的一个输出光学耦合到下一个顺序光移位寄存器到下一个顺序光移位寄存器的输入端口。 第一光移位寄存器的输入端口用作光串行到并行转换器的输入，接收一系列光脉冲。 每个所述第三光开关的输出端口用作光串行转换器的输出端口。 光移位寄存器由两个时钟控制，以相同的速率工作，但每个时钟与另一个时钟异相。 控制信号由第三时钟提供，以通过所述光输出开关从所述光移位寄存器同时输出所述光脉冲，以实现光串行到并行转换。

公开(公告)号：US4961621A

公开(公告)日：1990-10-09

申请号：US288583

申请日：1988-12-22

Applicant: Shing-Fong Su

Inventor： Shing-Fong Su

IPC: G02B6/28 ,  G11C19/00 ,  G11C19/38 ,  G11C21/00

CPC classification number: G11C19/00 ,  G02B6/28 ,  G02B6/2821 ,  G11C19/38 ,  G11C21/00

Abstract: An optical parallel-to-serial converter constructed from at least two optical shift registers coupled in cascade by an optical two-to-one combiner. The input port of the first optical shift register serves as one input to the parallel-to-serial converter, an extra optical combiner optically coupled to the last of said optical shift registers serves as one input port, while the optical combiners coupling said optical shift registers serve as the other input ports receiving parallel optical pulses. The output port of the last of said cascaded optical shift registers serves as the output port of the parallel-to-serial converter. The shift registers are controlled by two clocks, operating at the same rate, but each out of phase with the other, providing control signals to shift and output said optical pulses serially from said shift registers to effect a parallel-to-serial conversion.

Abstract translation: 一种光学并行到串行转换器，由至少两个光学移位寄存器构成，该移位寄存器由光学二对一组合器级联耦合。 第一光移位寄存器的输入端口用作并行到串行转换器的一个输入端，光耦合到最后的所述光移位寄存器的额外的光组合器用作一个输入端口，而组合器耦合所述光移位 寄存器用作接收并行光脉冲的其他输入端口。 最后一个级联光移位寄存器的输出端口用作并行到串行转换器的输出端口。 移位寄存器由两个时钟控制，工作速度相同，但每个时钟与另一个时钟异相，提供控制信号，从所述移位寄存器串行地移位和输出所述光脉冲，以实现并行到串行转换。

公开(公告)号：US4932736A

公开(公告)日：1990-06-12

申请号：US414984

申请日：1989-09-29

Applicant: Shing-Fong Su

Inventor： Shing-Fong Su

IPC: G02F1/313

CPC classification number: G02F1/3132 ,  G02F1/3133 ,  G02F2001/3135

Abstract: A 1.times.2 integrated optical switch with a high extinction ratio is obtained from the monolithic integration of three integrated waveguide couplers. The waveguide couplers are designed such that the output of the first waveguide coupler is directly coupled to the input of the other two integrated waveguide couplers by an integrated waveguide. Thus, the switch has two cascaded integrated waveguide couplers along each path from the single input to each of the two outputs. Only two pairs of electrodes are required by this design. The extinction ratio of this switch is the sum of the extinction ratios along an input-output path. Since integrated waveguide couplers are bidirectional, this switch can be used as a 2.times.1 switch by reversing the input and outputs.

Abstract translation: 从三路集成波导耦合器的单片集成获得具有高消光比的1x2集成光开关。 波导耦合器被设计成使得第一波导耦合器的输出通过集成波导直接耦合到另外两个集成波导耦合器的输入端。 因此，开关沿着从单个输入到两个输出中的每一个的每个路径具有两个级联的集成波导耦合器。 该设计只需要两对电极。 该开关的消光比是沿着输入 - 输出路径的消光比的总和。 由于集成波导耦合器是双向的，因此该开关可以通过反转输入和输出来用作2x1开关。

公开(公告)号：US5058060A

公开(公告)日：1991-10-15

申请号：US511888

申请日：1990-04-19

Applicant: Shing-Fong Su

Inventor： Shing-Fong Su

IPC: G11C21/00

CPC classification number: G11C21/00

Abstract: An optical memory cell constructed from an optical combiner, a 1.times.2 optical swtich and optical fibers. One input port of the optical combiner serves as the input to the memory cell. The output port of the optical combiner is connected to the input of the optical switch by an optical fiber. A first output port of said switch is connected by an optical fiber to the second input of the optical combiner, such that when said switch is in the straight-through state, an optical loop is formed through which an optical pulse can circulate. The second output of the optical switch serves as the output of the memory cell when said optical switch is in the cross-over state. Control signals are provided by a clock.

Abstract translation: 由光学组合器，1x2光学开关和光纤构成的光学存储单元。 光合并器的一个输入端口用作存储单元的输入。 光合并器的输出端口通过光纤连接到光开关的输入端。 所述开关的第一输出端口通过光纤连接到光组合器的第二输入端，使得当所述开关处于直通状态时，形成光环路，光脉冲可以通过该光回路循环。 当所述光开关处于交叉状态时，光开关的第二输出用作存储单元的输出。 控制信号由时钟提供。