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"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 7532071 | Operational amplifier circuit A level shifter unit outputting a level shifted signal generated by level shifting of output signals of the first and second differential amplifier circuits, and an output circuit including complementary output transistors series being coupled between the high poten... | 05/12/2009 |
| 7495986 | Semiconductor memory device, and method of controlling the same An internal voltage generator when activated, generates an internal voltage to be supplied to an internal circuit. Operating the internal voltage generator consumes a predetermined amount of the power. In response to a control signal from the exterior, an entry circ... | 02/24/2009 |
| 7484141 | Semiconductor device capable of performing test at actual operating frequency A semiconductor device includes a CPU core circuit, a bus connected to the CPU core circuit, and a memory BIST circuit configured to perform a memory test in response to an instruction supplied from the CPU core circuit through the bus. ... | 01/27/2009 |
