摘要:
An engine comprises one or more cylinders, each cylinder comprising a piston, a connecting rod, a crank shaft, and a crankpin, wherein the crankpin further comprises a main crankpin and a crankpin extension, wherein the connecting rod is affixed at one end to the piston and at another end to a first end of the crankpin extension, wherein a second end of the crankpin extension is affixed to a first end of the main crankpin, and wherein a second end of the main crankpin is affixed to the crankshaft.
摘要:
A computer memory system provides a double data rate (DDR) memory output while requiring memory chips with only half the frequency limit of the prior art DDR memory chips. The system contains a first bank memory bank 101 having data lines 106, and a second memory bank 102 having data lines 107. A basic system clock generates a delayed clock by means of a phase locked loop 140, or other phase shift device. The data lines of the first memory bank are connected with the data bus 116 in synchronism with the clock signal 104, while the data lines of the second memory bank are connected with the data bus 114 in synchronism with the delayed clock signal 105. As a result, the data bus is never connected to the data lines of both memory banks at the same time, but rather, the data bus is alternately connected with the first data bank and then the second data bank.
摘要:
A method and apparatus for enhancing memory speed and capacity utilizes a set of electronic switches (24) to isolate the computer data bus (2) from the memory chips (16, 32, 34, 36). The apparatus includes one or more multi-sides memory boards (10, 12, 14) with etched leads (30, 42), lands and feed-through. The memory chips may be mounted on either one side or both sides of each board. Connection between the memory board and the motherboard is made by means of a comb of contact fingers (5) or edge-connector which mates with a connector (8) on the motherboard (28). The data lines and address lines of the computer bus are distinct from each other, and routed to the memory board via the edge connector (8). A set of CMOS TTL or FET switches (24) is located adjacent to the comb (5), and are switched on and off by a decoded combination of address, control, or data lines or by a distinct enable line provided by the CPU (3), controller or other decoding means located on the motherboard (28). As a result, only the memory chips actually required for the memory access are switched on, so that the other memory chips are isolated from the data bus (2). Because of this isolation, the capacitance of the non-switched components is not seen by the data bus, resulting in a lower overall capacitance, and a higher inherent memory access.
摘要:
A computer memory system provides a double data rate (DDR) memory output while requiring memory chips with only half the frequency limit of the prior art DDR memory chips. The system contains a first bank memory bank 101 having data lines 106, and a second memory bank 102 having data lines 107. A basic system clock generates a delayed clock by means of a phase locked loop 140, or other phase shift device. The data lines of the first memory bank are connected with the data bus 116 in synchronism with the clock signal 104, while the data lines of the second memory bank are connected with the data bus 114 in synchronism with the delayed clock signal 105. As a result, the data bus is never connected to the data lines of both memory banks at the same time, but rather, the data bus is alternately connected with the first data bank and then the second data bank.
摘要:
A method and apparatus for enhancing memory speed and capacity utilizes a set of electronic switches (24) to isolate the computer data bus (2) from the memory chips (16, 32, 34, 36). The apparatus includes one or more multi-sides memory boards (10, 12, 14) with etched leads (30, 42), lands and feed-through. The memory chips may be mounted on either one side or both sides of each board. Connection between the memory board and the motherboard is made by means of a comb of contact fingers (5) or edge-connector which mates with a connector (8) on the motherboard (28). The data lines and address lines of the computer bus are distinct from each other, and routed to the memory board via the edge connector (8). A set of CMOS TTL or FET switches (24) is located adjacent to the comb (5), and are switched on and off by a decoded combination of address, control, or data lines or by a distinct enable line provided by the CPU (3), controller or other decoding means located on the motherboard (28). As a result, only the memory chips actually required for the memory access are switched on, so that the other memory chips are isolated from the data bus (2). Because of this isolation, the capacitance of the non-switched components is not seen by the data bus, resulting in a lower overall capacitance, and a higher inherent memory access.