CN1317748A

CN1317748A - Optical fibre bus

Info

Publication number: CN1317748A
Application number: CN 00106613
Authority: CN
Inventors: 朱曜明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-12
Filing date: 2000-04-12
Publication date: 2001-10-17

Abstract

An optical fibre bus for computer is disclosed, which features that the optical fibre is used as part or all of buses in computer and the photoelectric converter is built in the chips. Its advantages include high transmission speed, simple circuit, unified interfaces, easy upgrading, and high performance.

Description

Fiber buss

The present invention relates to a kind of fiber buss, belong to computer realm.

The current computer parts all link to each other with lead, various slots, the socket of mainboard all use copper cash, Copper Foil, raising day by day with computing power, bus is more and more wideer, speed is more and more higher, slot, socket are increasing, become increasingly complex, and influence such as electromagnetic radiation, distributed capacitance, distributed inductance is increasing.Numerous PCI, AGP, ISA and CPU slot, socket and each interface make mainboard become a block socket, cost height not only, and integrated circuit board plug wearing and tearing are big, and the failure rate height is bulky.Rapid development of computer increases severely CPU, display chip, storer equiband, speed, though advance semiconductor technology day, chip volume increases because of the increase of pin, and production cost is more and more high, and influencing each other between pin increases day by day.Optical fiber technology has years of development, and transfer rate can have several GHZ, early has in occasions such as sound equipment, sound cards to make transmission usefulness, technology comparative maturity.

The purpose of this invention is to provide a kind of fiber buss, the connection of the CPU of computing machine, I/O equipment, storer etc. is replaced with optical fiber, partially or completely replace existing three class buses, make between each component of computer, the data transmission of computing machine and other equipment is faster, safer, all parts use unified interface, the complete machine layout is easy, and it is more reasonable to design.

Technical scheme of the present invention is all kinds of buses that replace active computer with optical fiber, three class buses all can be used optical fiber, and then at the built-in chip type photoelectric commutator, data be transmitted fully outside chip with light.Existing computer organization synoptic diagram is seen Fig. 1, each parts all has than complex interface, even the most original ISA slot also has 98 lines, PCI, AGP etc. are more than 100 lines, the hundreds of especially lines of CPU pin mostly utilize the Copper Foil on the integrated circuit board to connect through the slot socket or through each winding displacement cable.Add photoelectric commutator for each parts, making transformation of data is light signal, uses optical fiber and miscellaneous part communication, sees Fig. 2, uses one or reach the electric bus that bar optical fiber just can replace complexity, and the information transmission is finished with optical fiber.Certainly, power supply and part control line etc. also are to use traditional electrical wire.Specific to chip, chip bus only is the line of each chip, and internal bus and external bus foundation structure also are chip bus, and fiber buss just chip makes and uses up communication, and the built-in chip type electrooptical device can make wherein link more simplify.

Owing to adopt technique scheme, fiber buss not only can be finished the function of data transmission, and make computing machine cancel a large amount of electric slots, socket, interface, carry out exchanges data with light fully, the matching problem that does not have hardware interface, any one parts can insert any one socket and use, and entire machine design is convenient and reasonable, and electromagnetic radiation is littler.Behind the built-in chip type electrooptical device, chip pin significantly reduces, thereby production cost is descended, and the integrated circuit board production technology is simplified, volume falls sharply.

Now in conjunction with the accompanying drawings the present invention is further set forth:

Fig. 1 is the structural representation at center with the bus for active computer.

Fig. 2 is a fiber buss computing machine synoptic diagram.

Fig. 3, Fig. 4, Fig. 5 are that the chip-scale of bus is set forth figure.

Parallel lines signal electrical lead winding displacement among the figure, single line signal optical fiber.

The bus and the interface of active computer are more, transmission speed differs widely, now be that example: ISA is 8.33MB/s with the microcomputer, PCI is 133MB/s, and AGP is 266MB/s, and AGP doubly speed is 533MB/s, USB is 12Mbps, IEEE1394 is 100Mbps, 200Mbps or 400Mbps, the string and etc. interface rate then lower.Current fiber transmission speeds can reach several GHZ, surpasses the requirement of above all kinds of buses, interface fully, does not have technical matters.But when speed was higher, the high speed optoelectronic switching device was too complicated, the cost height.We are from the angle of chip-scale, all kinds of computer bus, interface are the line of chip and chip chamber, see Fig. 3, here ignore chip power supply and peripheral cell, two parts communications are exactly two chip chamber lead transmission currents or change voltage, and behind the adding photoelectric conversion unit, these electric signal change light signal in advance, change electric signal after the transmission again into, see Fig. 4.If electrooptical device also is integrated in the chip, part shown in dotted line is a chip, thereby pin of chip is significantly reduced, and only needs the electric signal of output or input photoelectric tube, but also integrated electro pipe.When bus speed was higher, the single fiber transmission can make circuit complicated, and we adopt the mode of many optical fiber, see Fig. 5, with the bus five equilibrium, came parallel processing by a plurality of electrooptical devices, was converted to electric signal after many Optical Fiber Transmission again.In when shunting, we can be by address wire, control line, data line classification, also visual concrete condition shunting, also can one-way transmission with raising speed and parallel processing capability.

Claims

1, a kind of fiber buss, be between the plug-in unit of construction system in the computing machine, between the sheet of plug-in unit or the standard information passage between system, it is characterized in that, in the sheet, plug-in unit or intrasystem signal intercom after changing light signal into mutually in advance with the physical support of optical fiber as bus.

2, fiber buss according to claim 1 is characterized in that computing machine only uses a kind of optical fiber interface, and all parts, peripheral hardware and other equipment all use unified optical fiber interface.

3, fiber buss according to claim 1 is characterized in that the built-in chip type electrooptical device, with the light wave correspondence with foreign country.

4, according to claim 1,3 described fiber busss, it is characterized in that a plurality of electrooptical devices of built-in chip type, parallel or branch homochronousness correspondence with foreign country with many optical fiber.

5, according to claim 1,3 described fiber busss, it is characterized in that built-in chip type electrooptical device and photoelectric tube, externally contactless communication.