초록 ▼

For improving data transmission over the radio path between a mobile station and a base station in a mobile telecommunications system, a divider splits a data signal whose speed is higher than the maximum data transfer rate in one frame, into at least two signals of lower speed before transmission o

For improving data transmission over the radio path between a mobile station and a base station in a mobile telecommunications system, a divider splits a data signal whose speed is higher than the maximum data transfer rate in one frame, into at least two signals of lower speed before transmission over the radio path. The mobile station is allocated at least two traffic channels for the high-speed data transmission so that each of the signals of lower speed is transmitted over the radio path in its respective traffic channel. A combiner combines the signals of lower speed received over the radio path, to reconstitute the original signal at the receiving end.

대표청구항 ▼

For improving data transmission over the radio path between a mobile station and a base station in a mobile telecommunications system, a divider splits a data signal whose speed is higher than the maximum data transfer rate in one frame, into at least two signals of lower speed before transmission o

For improving data transmission over the radio path between a mobile station and a base station in a mobile telecommunications system, a divider splits a data signal whose speed is higher than the maximum data transfer rate in one frame, into at least two signals of lower speed before transmission over the radio path. The mobile station is allocated at least two traffic channels for the high-speed data transmission so that each of the signals of lower speed is transmitted over the radio path in its respective traffic channel. A combiner combines the signals of lower speed received over the radio path, to reconstitute the original signal at the receiving end. is provided on the back side of said door. 5. A memory apparatus according to claim 4, wherein another a water guide path for guiding said liquid flowing out from said water guide path to the outside of said memory apparatus is provided below both end portions of said water guide path of said door inside said memory apparatus. 6. A memory apparatus using a removable recording medium comprising: an outer case comprising an upper outer case and a lower outer case; a drive device for driving said recording medium; an inner case comprising an inner bottom case fitted onto said lower outer case and a top cover covering the upper part of said inner bottom case; a power source unit disposed in said inner bottom case; and a holder for holding said drive device to said inner bottom case; wherein a separator interposed as a safety component between said power source unit and said drive device is defined by extending upward the wall surface of said holder on the side of said power source unit; the distal end portion of the wall surface of said holder functioning as said separator is extended in such a manner as to cover the upper part of said power source unit, in order to allow a part of said holder to function as a heat sink; a leaf spring is disposed on the support surface of said holder for holding said drive device, said drive device is held by said holder through said leaf spring; a hook is provided at a predetermined position of said lower outer case, and a male anchor member is provided at a position spaced apart by a predetermined distance from said hook; an anchor hole is formed in said inner bottom case at a position corresponding to said hook, and a female anchor member is provided at a position corresponding to said male anchor member; said female anchor member of said holder is engaged with said male anchor member of said lower outer case under the state where said anchor hole of said holder is anchored to said hook of said lower outer case, so that said holder can be fitted to said lower outer case; a loading port for inserting or ejecting said recording medium is equipped with said drive device for driving said recording medium; a front panel having a door is provided at the position corresponding to said loading port is provided; a medium eject button for ejecting said recording medium from said drive device is provided on said front panel; a display for displaying light from a busy lamp which is turned on when said recording medium is being read or written is provided integrally with a medium eject button; at least a part of said medium eject button is made of a transparent light guide member which guides a light from said busy lamp to said display; a water guide path for discharging a liquid entering from said loading port to both sides of a door is provided on the back side of said door; another water guide path for guiding said liquid flowing out from said water guide path to the outside of said memory apparatus is provided below both end portions of said water guide path of said door inside said memory apparatus; and grooves for generating a flow of air inside said outer case are provided to the outer periphery of a rotating portion of a spindle motor for rotating said recording medium loaded into said drive device. 7. A memory apparatus using a removable recording medium comprising: a drive device for driving said recording medium equipped with a loading port for inserting or ejecting said recording medium; a front panel, having a door at the position corresponding to said loading port; a display for displaying light from a busy lamp which is turned on when said recording medium is being read or written is provided integrally with medium eject button; a circuit substrate of said drive device; and a medium eject switch provided on said circuit substrate and being turned ON/OFF by said medium eject button; wherein said medium eject button for ejecting said recording medium from said dr ive device is provided on said front panel; wherein at least a part of said medium eject button is made of a transparent light guide member which guides a light from said busy lamp to said display; wherein said busy lamp is provided on said circuit substrate at the position facing said one end of said transparent light guide member; and wherein said medium eject switch and said busy lamp are provided side by side on the circuit substrate. 8. A memory apparatus according to claim 7, wherein said medium eject button comprises: a main body biased toward said front panel by a spring; a main shaft for guiding a light from said busy lamp to said main body; and a subshaft for turning ON/OFF said medium eject switch. 9. A memory apparatus according to claim 7, wherein said front panel is formed integrally with an outer case. 10. A memory apparatus according to claim 7, wherein a water guide path for discharging a liquid entering from said loading port to both sides of said door is provided on the back side of said door. 11. A memory apparatus according to claim 10, wherein another water guide path for guiding said liquid flowing out from said water guide path to the outside of said memory apparatus is provided below both end portions of said water guide path of said door inside said memory apparatus. only at a time of focus jumping conducted for the first time after activation of the apparatus, and subsequently operates the focus jumping part at the same phase in a case where the same recording medium is used at the same rotation speed. 5. An optical disk apparatus according to claim 2, wherein the surface deflection measuring part measures a shape of surface deflection for each of different rotation speeds of the recording medium, and the jumping starting part determines and stores a phase at which the focus jumping part is operated, for each of different rotation speeds of the recording medium based on the measurement results of the surface deflection measuring part, and switches the phase at which the focus jumping part is operated in accordance with the rotation speed of the recording medium. 6. An optical disk apparatus according to claim 1, wherein the surface deflection measuring part measures a shape of surface deflection that is a cyclic phenomenon synchronized with a rotation cycle of the recording medium on a predetermined phase basis, and the jumping starting part operates the focus jumping part in a case where a difference between a shape of surface deflection of the recording medium at an arbitrary phase and a shape of surface deflection of the recording medium at a phase ahead of the arbitrary phase by a predetermined number of phases. 7. An optical disk apparatus according to claim 6, wherein the jumping starting part operates the focus jumping part at an arbitrary phase in a case where a difference between a maximum value and a minimum value of a shape of surface deflection in one rotation of the recording medium is a predetermined value or less. 8. An optical disk apparatus according to claim 6, wherein the jumping starting part determines a phase at which the focus jumping part is operated, based on the measurement results of the surface deflection measuring part, only at a time of focus jumping conducted for the first time after activation of the apparatus, and subsequently operates the focus jumping part at the same phase in a case where the same recording medium is used at the same rotation speed. 9. An optical disk apparatus according to claim 6, wherein the surface deflection measuring part measures a shape of surface deflection for each of different rotation speeds of the recording medium, and the jumping starting part determines and stores a phase at which the focus jumping part is operated, for each of different rotation speeds of the recording medium based on the measurement results of the surface deflection measuring part, and switches the phase at which the focus jumping part is operated in accordance with the rotation speed of the recording medium. 10. An optical disk apparatus according to claim 1, wherein the surface deflection measuring part measures a shape of surface deflection of the recording medium at intervals of a predetermined time, and the jumping starting part includes a jumping timing calculating part for determining timing at which the focus jumping part is operated, in accordance with a positional change in the shape of surface deflection in a predetermined time, based on the measurement results of the surface deflection measuring part. 11. An optical disk apparatus according to claim 10, wherein the jumping timing calculating part determines timing at which a difference between a maximum value and a minimum value of the shape of surface deflection of the recording medium in the predetermined time is a predetermined value or less, as timing at which the focus jumping part is operated. 12. An optical disk apparatus according to claim 10, wherein the jumping timing calculating part determines timing at which a difference between a shape of surface deflection of the recording medium at an arbitrary time and a shape of surface deflection after the predetermined time is a predetermined value or less, as timing at which the focus jumping part is operated. 13. An