1. A system for checking the validity of data transmission, the system comprising a data transmitting computer, a data receiving computer, and a network, wherein:
the data transmitting computer is provided for generating a check-code of original data, and sending a data packet, which comprises the original data and the check-code, to the data receiving computer via the network, the data transmitting computer comprising a Central Processing Unit (CPU), a Peripheral Component Interface (PCI) bus, and a memory, the CPU of the data transmitting computer comprising:
a shift operation unit for performing a shift operation on data units of the original data;
an addition operation unit for adding data in all data units after the shift operation to obtain a checksum1;
a complement operation unit for calculating a 2’s complement of the last 2m bytes of the checksum1 to obtain a check-code; and
a control unit for reading the original data from the memory via the PCI bus, and sending a data packet comprising the original data and the check-code to the data receiving computer; and
the data receiving computer is provided for receiving the data packet from the data transmitting computer, checking and determining whether the data packet is valid, the data receiving computer comprising a CPU, the CPU of the data receiving computer comprising:
a shift operation unit for performing a shift operation on the data units of the original data unpacked from the received data packet;
an addition operation unit for adding the data units after the shift operation to obtain a checksum2, and adding the last 2m bytes of the checksum2 to the check-code from the received data packet to obtain a checksum3; and
a control unit for determining whether the data packet from the data transmitting computer is valid by checking whether the last 2m bytes of the checksum3 equals \u201c0;\u201d
wherein \u201cm\u201d represents the number \u201c0\u201d or any natural number.
2. The system according to claim 1, wherein the memory is used for storing the original data to be sent to the data receiving computer.
3. The system according to claim 1, wherein the shift operation performed by the shift operation units of the data transmitting computer and the data receiving computer is a left shift operation.
4. The system according to claim 1, wherein the shift operation performed by the shift operation units of the data transmitting computer and the data receiving computer is a right shift operation.
5. The system according to claim 1, wherein each of the data units comprises 2m bytes of the original data.
6. A computer-based method for checking the validity of data transmission from a data transmitting computer to a data receiving computer through a network, the method comprising the steps of:
reading original data;
performing a shift operation on data units of the original data according to a shift operation rule;
adding all data of the data units after the shift operation to obtain a checksum1;
regarding the last 2m bytes of the checksum1 as a checksum11;
calculating a 2’s complement of the checksum11 to obtain a check-code;
packing the check-code with the original data into a data packet;
sending the data packet to the data receiving computer via the network;
unpacking the data packet to obtain the original data and the check-code;
performing a shift operation on the data units of the unpacked original data according to the shift operation rule;
adding all data of the data units after the shift operation of the immediately preceding step to obtain a checksum2;
regarding the last 2m bytes of the checksum2 as a checksum22;
adding the checksum22 to the check-code from the data packet to obtain a checksum3;
regarding the last 2m bytes of the checksum3 as a checksum33;
determining whether the data packet from the data transmitting computer is valid by checking whether the checksum33 equals \u201c0;\u201d and
accepting the valid data packet if the checksum33 equals \u201c0;\u201d
wherein \u201cm\u201d represents the number \u201c0\u201d or any natural number.
7. The method according to claim 6, further comprising the step of sending a request for resending of the data packet to the data transmitting computer if the checksum33 does not equal \u201c0.\u201d
8. The method according to claim 6, wherein each of the data units comprises 2m bytes of the original data.
9. The method according to claim 6, wherein the shift operation rule is either a left shift operation rule or a right shift operation rule.
10. A method for checking validity of data transmission from a data transmitting computer to a data receiving computer through a network, the method comprising the steps of:
reading data from said data transmitting computer;
retrieving a first checksum value based on said data;
retrieving a first check code by calculating a two’s complement of a predetermined last part of said first checksum value;
transmitting said data and said first check code to said data receiving computer through said network;
retrieving a second checksum value based on said transmitted data;
retrieving a second check code by adding a predetermined last part of said second checksum value;
retrieving a third check code by adding said second check code to said first check code; and
evaluating said validity of said data transmission by checking whether said third check code equals \u201c0\u201d.
11. The method according to claim 10, wherein said first and second checksum values are retrieved in a same way, and said predetermined last part of said first checksum value used to create said first check code has a binary length same as that of said predetermined last part of said second checksum value used to create said second check code.
12. The method according to claim 10, wherein at least one of said first and second checksum values is retrieved by performing a shift operation on said data first and adding up said data.
13. The method according to claim 10, wherein said predetermined last part at least one of said first and second checksum values is the last 2m bytes of said at least one of said first and second checksum values correspondingly, in which \u201cm\u201d represents the number \u201c0\u201d or any natural number.
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. An LED illuminator module with high heat-dissipating efficiency, comprising:
a flat heat pipe, formed with a flat surface;
an insulation layer formed on the flat surface of the flat heat pipe, the insulation layer including a pair of insulated electrode portions and a plurality of LED-setting portions disposed between the pair of insulated electrode portions;
a conducting layer having a pair of conducting electrode portions partially covered on the pair of the insulated electrode portions;
a plurality of LED fixed on the LED-setting portions respectively and electrically connected to the pair of conducting electrode portions with wires; and
an encapsulation covers the LEDs, the encapsulation mixed with phosphor powder.
2. The LED illuminator module with high heat-dissipating efficiency of claim 1, wherein each of the LED is connected with a pair of wires, contiguous two of the LEDs are connected with the wires, the outmost LEDs are connected with the conducting electrode portions with one of the wires.
3. The LED illuminator module with high heat-dissipating efficiency of claim 1, wherein the insulation layer further comprises a plurality of insulated strip portions formed on the flat heat pipe in a parallel way and located between the LED-setting portions, the conducting layer further comprises a plurality of conducting strip portions covered on the insulation strip portions.
4. The LED illuminator module with high heat-dissipating efficiency of claim 3, wherein each of the LED is connected a pair of wires, one of the wires is connected to the conducting strip portions, and the outmost LEDs are connected to the conducting electrode portions by one of the wires.
5. The LED illuminator module with high heat-dissipating efficiency of claim 1, further comprising a partition ring formed at a periphery of the LEDs.
6. The LED illuminator module with high heat-dissipating efficiency of claim 5, wherein the partition ring is a colloid bar.
7. The LED illuminator module with high heat-dissipating efficiency of claim 1, wherein the flat heat pipe has a concave portion and a plurality of blocking walls surrounding the concave portion, the concave portion has a flat bottom surface, wherein the LED-setting portions and the illuminating LEDs are disposed on the flat bottom surface of the concave portion, wherein the encapsulation is fixed in the concave portion.
8. The LED illuminator module with high heat-dissipating efficiency of claim 7, wherein the pair of insulated electrode portions and the pair of conducting electrode portions are formed outside the concave portion.
9. The LED illuminator module with high heat-dissipating efficiency of claim 7, wherein the blocking walls are oblique and are formed with a reflecting surface to reflect the light from the LEDs.
10. The LED illuminator module with high heat-dissipating efficiency of claim 1, wherein the encapsulation has a top surface or being a flat surface.
11. A manufacturing method for an LED illuminator module with high heat-dissipating efficiency, comprising steps as followed:
providing a flat heat pipe, and forming a flat surface on the flat heat pipe;
forming an insulation layer on the flat surface of the flat heat pipe, wherein the insulation layer is divided as a pair of insulated electrode portions, and a plurality of LED-setting portions between the pair of insulated electrode portions;
forming a conducting layer on the insulation layer, wherein the conducting layer is divided as a pair of conducting electrode portions partially covered on the pair of insulated electrode portions respectively;
fixing a plurality of LEDs on the LED-setting portions, and electrically connecting the LEDs to the pair of conducting electrode portions with wires; and
covering an encapsulation on the LED chips, wherein the encapsulation including phosphor powder.
12. The manufacturing method for LED illuminator module with high heat-dissipating efficiency of claim 11, further comprising an anti-soldering layer partially covered on the conducting layer.
13. The manufacturing method for LED illuminator module with high heat-dissipating efficiency of claim 11, wherein a wiring step is applied to the LEDs, each of the LEDs has a pair of wires, contiguous two of the LEDs are connected with the wires.
14. The manufacturing method for LED illuminator module with high heat-dissipating efficiency of claim 11, wherein the step of forming the insulated layer further comprises a step of forming a plurality of insulated strip portions, wherein the insulated strip portions are arranged on the flat heat pipe in a parallel way and located between the LED-setting portions; and wherein the step of forming the conducting layer further comprising a step of forming a plurality of conducting strip portions covered on the insulated strip portions.
15. The manufacturing method for LED illuminator module with high heat-dissipating efficiency of claim 11, further comprising a step of providing a partition ring on a periphery of the LEDs, wherein the partition ring is an opaque thermosetting plastic frame.
16. The manufacturing method for LED illuminator module with high heat-dissipating efficiency of claim 11, further comprising a step of forming a concave portion on the flat heat pipe, wherein the concave portion has a flat bottom surface, wherein the LED-setting portions and the LEDs are disposed on the flat bottom surface, and the encapsulation is fixed in the concave portion.
17. The manufacturing method for LED illuminator module with high heat-dissipating efficiency of claim 16, wherein the pair of insulated electrode portions, and the pair of conducting electrode portions are formed outside the concave portion.
18. The manufacturing method for LED illuminator module with high heat-dissipating efficiency of claim 16, wherein the concave portion is surrounded by a plurality of blocking walls, wherein the blocking walls are oblique and reflects light from the LEDs.