초록 ▼

In the CDMA environment, a local call is directly made between two mobile stations (MS) without the involvement of a base station. The local direct calls do not interfere with any existing communication lines, and the implementation on the CDMA based units includes Master MS units and Slave MS units

In the CDMA environment, a local call is directly made between two mobile stations (MS) without the involvement of a base station. The local direct calls do not interfere with any existing communication lines, and the implementation on the CDMA based units includes Master MS units and Slave MS units which selects one of currently unused offset values in a pilot signal for a local direct call in the CDMA environment.

대표청구항 ▼

In the CDMA environment, a local call is directly made between two mobile stations (MS) without the involvement of a base station. The local direct calls do not interfere with any existing communication lines, and the implementation on the CDMA based units includes Master MS units and Slave MS units

In the CDMA environment, a local call is directly made between two mobile stations (MS) without the involvement of a base station. The local direct calls do not interfere with any existing communication lines, and the implementation on the CDMA based units includes Master MS units and Slave MS units which selects one of currently unused offset values in a pilot signal for a local direct call in the CDMA environment. first pinned layer comprises Co or CoFe pinned by PtMn, IrMn, or NiMn. 12. A magnetic head according to claim 2, wherein the second pinned layer comprises Co or CaFe pinned by PtMn, IrMn, or NiMn. 13. A recording/reproducing apparatus comprising: a magnetic head according to claim 1; and the recording medium comprising a first magnetic layer. 14. A recording/reproducing apparatus according to claim 13, wherein the first magnetic layer has a compensation temperature and a Curie temperature. 15. A recording/reproducing apparatus according to claim 14, wherein the compensation temperature is in the range between room temperature and about 100° C., and the Curie temperature is in the range between about 200° C. and about 300° C. 16. A recording/reproducing apparatus according to claim 13, wherein the first magnetic layer comprises a second magnetic layer for recording and a third magnetic layer for reproducing. 17. A recording/reproducing apparatus according to claim 13, wherein the recording medium comprises magnetic film micro dots magnetically separated from each other. 18. A recording/reproducing apparatus according to claim 13, wherein the recording medium is a vertical magnetic storage medium. 19. A recording/reproducing apparatus according to claim 13, wherein the recording medium is a disk. 20. A recording/reproducing apparatus according to claim 13, wherein the recording medium is a tape. 21. A recording/reproducing apparatus according to claim 13 further comprising: a support for supporting the substrate; a first driving section for driving the support; and a second driving section for providing a movement of the magnetic head, provided on the substrate. 22. A recording/reproducing apparatus according to claim 21, wherein the second driving section comprises a thin film; and a movement of the magnetic head is provided by displacement of the thin film in a thickness direction thereof. 23. A recording/reproducing apparatus according to claim 21, wherein the second driving section is driven by a piezoelectric system, an electrostatic system, or an electromagnetic system. 24. A recording/reproducing apparatus according to claim 21 further comprising a plurality of the magnetic heads, wherein the plurality of the magnetic heads are simultaneously driven by the first driving section. 25. A recording/reproducing apparatus according to claim 13, wherein the first magnetic layer comprises at least one of CoCr, CoPt, CoCrPt, CoCrTa, CoTaCrPt, FePt, TbFe, TbFeCo, and GdFeCo. 26. A recording/reproducing apparatus according to claim 16, wherein the second magnetic layer comprises TbFe or TbFeCo; and the third magnetic layer comprises GdFeCo. a photodetector and a reference voltage associated therewith, an evaluation unit having an input, and a connection disposed between the detection unit and the input of the evaluation unit. In such scanning apparatuses, voltage coupling is usually provided between the detection unit and the input of the evaluation unit. Such a coupling arrangement has the disadvantage that the two units must operate in approximately the same voltage range. In the scanning apparatus according to the present invention it is not necessary for the detection unit and the evaluation unit to operate in substantially the same voltage range. According to the present invention, the evaluation unit has a controller, that holds the input of the connection at the value of a reference voltage of the detection unit. irst word lines; a second word line connected to the first word-line-driving circuit; a second word-line-driving circuit connected to the second word line; a first address signal supplied to the second word-drive-line driving circuit; a first word drive line connected to the first word-line-driving circuit; a second word drive line connected to the first word-line-driving circuit and complementary to the first word drive line; a first word-drive-line-driving circuit connected to the first and second word drive lines to drive the first and second word drive lines; a third word drive line connected to the first word-drive-line driving circuit; a second word-drive-line-driving circuit connected to the third word drive line to drive the third word drive line; a second address signal supplied to the second word-drive-line-driving circuit; a block select line connected to the first word-drive-line-driving circuit; a block-select-line-driving circuit connected to the block select line to drive the block select line; and a third address signal supplied to the block-select-line-driving circuit, wherein: the second word-drive-line-driving circuit generates a first signal in accordance with the second address signal to thereby drive the third word drive line, the second address signal having high and low levels set at first and second voltages, respectively, the first signal having high and low levels set at the first voltage and a third voltage lower than the second voltage, respectively; the block-select-line-driving circuit generates a second signal in accordance with the third address signal to thereby drive the block select line, the third address signal having high and low levels set at the first voltage and the second voltage, respectively, the second signal having high and low levels set at a fourth voltage higher than the first voltage and the third voltage, respectively; the first word-drive-line driving circuit generates third and fourth signals in accordance with the first signal supplied from the second word-drive-line-driving circuit via the third word drive line, and a level of the second signal supplied from the block-select-line-driving circuit via the block select line, thereby driving the first and second word drive lines, the third signal having high and low levels set at the fourth voltage and the third voltage, respectively, the fourth signal having high and low levels set at the first and third voltages, respectively; the second word-line-driving circuit generates a fifth signal in accordance with the first address signal to thereby drive the second word line, the first address signal having high and low levels set at the first and second voltages, respectively, the fifth signal having high and low levels set at the fourth and third voltages, respectively; and the first word-line-driving circuit generates a sixth signal in accordance with the third and fourth signals supplied from the first and second word drive lines, and the fifth signal supplied from the second word-line-driving circuit via the second word line, thereby driving the first word lines, the sixth signal having high and low levels set at the fourth voltage and the third voltage, respectively. 8. The device according to claim 7, wherein: the first word-drive-line-driving circuit includes a first level shift circuit which shifts the first voltage to the fourth voltage, and shifts the second voltage to the third voltage; the second word-drive-line-driving circuit includes a second level shift circuit which shifts the second voltage to the third voltage; the second word-line-driving circuit includes a third level shift circuit which shifts the first voltage to the fourth voltage, and a fourth level shift circuit which shifts the second voltage to the third voltage; the first word-line-driving circuit includes an inverter circuit which outputs one of the third and fourth voltages in accordance with the fifth signal supplied fr