1. A stator support shaft for an automatic transmission, comprising:
an internal axial bore for receiving an input shaft;
a forward engagement portion for engaging a stator of a torque converter of the automatic transmission;
a central engagement portion for engaging a stator support of the automatic transmission and transferring to the stator support substantially all of a torque load imposed on the stator support shaft by the stator;
a rearward portion positioned rearward of the central engagement portion; and
a first internal circumferential oil seal groove positioned in the internal axial bore of the rearward portion, the first oil seal groove constructed and arranged to receive a first oil seal for establishing a sealing engagement between the stator support shaft and the input shaft and for blocking an axial flow of oil between the stator support shaft and the input shaft originating from the torque converter.
2. The stator support shaft as in claim 1, and further comprising:
a first oil flow bore connecting the axial internal bore with an exterior of the shaft for allowing the oil from the torque converter flowing between the stator support shaft and the input shaft to flow to an exterior of the stator support shaft, the first oil flow bore positioned on the rearward portion of the stator support shaft forward of the first oil seal groove.
3. The stator support shaft as in claim 2, and further comprising:
a second internal circumferential oil seal groove positioned in the internal axial bore of the rearward portion of the stator support shaft rearward of the first oil seal groove, the second oil seal groove constructed and arranged to receive a second oil seal for establishing a sealing engagement between the stator support shaft and the input shaft and creating an oil chamber between the stator support shaft, the input shaft and the first oil seal.
4. The stator support shaft as in claim 3, and further comprising:
a second oil flow bore connecting the axial internal bore with an exterior of the shaft for allowing oil to flow from an exterior of the shaft to the interior axial bore, the second oil flow bore positioned axially on the stator support shaft between the first and second oil seal grooves.
5. The stator support shaft as in claim 4, wherein the oil chamber is axially positioned to connect to an oil flow bore positioned in the input shaft and pass oil from the exterior of the stator support shaft to the input shaft oil flow bore.
6. The stator support shaft as in claim 5, and further comprising:
the first oil seal and the second oil seal.
7. An automatic transmission, comprising:
an input shaft having a forward engagement portion for engaging a turbine of a torque converter;
a first oil seal;
a stator support shaft, comprising:
an internal axial bore for receiving the input shaft;
a forward engagement portion for engaging a stator of the torque converter of the automatic transmission;
a central engagement portion for engaging a stator support of the automatic transmission and transferring to the stator support substantially all of a torque load imposed on the stator support shaft by the stator;
a rearward portion positioned rearward of the central engagement portion; and
a first internal circumferential oil seal groove positioned in the internal axial bore of the rearward portion, the first oil seal groove constructed and arranged to receive the first oil seal for establishing a sealing engagement between the stator support shaft and the input shaft and for blocking an axial flow of oil between the stator support shaft and the input shaft originating from the torque converter.
8. The automatic transmission as in claim 7, wherein the stator support shaft further comprises:
a first oil flow bore connecting the axial internal bore with an exterior of the shaft for allowing the oil from the torque converter flowing between the stator support shaft and the input shaft to flow to an exterior of the stator support shaft and to an oil cooler of the automatic transmission, the first oil flow bore positioned on the rearward portion of the stator support shaft forward of the first oil seal groove.
9. The automatic transmission as in claim 8, and further comprising:
a second oil seal;
a second internal circumferential oil seal groove positioned in the internal axial bore of the rearward portion of the stator support shaft rearward of the first oil seal groove, the second oil seal groove constructed and arranged to receive the second oil seal for establishing a sealing engagement between the stator support shaft and the input shaft and creating an oil chamber between the stator support shaft, the input shaft and the first oil seal.
10. The automatic transmission as in claim 9, wherein the stator support shaft further comprises:
a second oil flow bore connecting the axial internal bore with an exterior of the shaft for allowing oil to flow from an oil cooler exterior of the shaft to the interior axial bore, the second oil flow bore positioned axially on the stator support shaft between the first and second oil seal grooves.
11. The automatic transmission as in claim 10, wherein the input shaft includes an oil flow bore and the oil chamber is axially positioned to connect to the input shaft oil flow bore and pass oil from the exterior of the stator support shaft to the input shaft oil flow bore.
12. The automatic transmission as in claim 11, wherein an external portion of the input shaft positioned between and near the first and second oil seals is free of any substantive grooving.
13. The automatic transmission as in claim 12, and further comprising the torque converter.
14. The automatic transmission as in claim 9, wherein an external portion of the input shaft positioned between and near the first and second oil seals is free of any substantive grooving.
15. The automatic transmission as in claim 7, and further comprising the torque converter.
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. A decoding apparatus comprising:
a) an input unit, arranged to input a bitstream obtained by coding a plurality of object data in units of objects and multiplexing the coded data, wherein the plurality of object data are data which provide a desired scalability in accordance with a combination among the plurality of object data;
b) a separation unit, adapted to separate coded data of each object from the bitstream;
c) a judgment unit, adapted to judge permission of reproduction of the coded data by using intellectual property and management protection data included in the bitstream;
d) a selection unit, adapted to select predetermined object data from among the plurality of object data according to a judgment result obtained by said judgment unit and the level of reproduction-permitted scalability;
e) an outputting unit, adapted to decode the coded data of the selected object data, and output the decoded data; and
f) a synthesis unit, adapted to synthesize the object data outputted by said outputting unit.
2. An apparatus according to claim 1, wherein the bitstream is a bitstream complying with MPEG4.
3. An apparatus according to claim 1, wherein the bitstream input to said input unit includes a coded bitstream, and said input unit comprises a descrambling unit, arranged to descramble the scrambled bitstream.
4. An apparatus according to claim 3, wherein the intellectual property and management protection data is not encoded, and said descrambling unit descrambles the scrambled bitstream in accordance with the intellectual property data.
5. An apparatus according to claim 3, further comprising a read unit, adapted to read descrambling data for descrambling the scrambled data, the descrambling data being stored in an IC card, wherein said descrambling unit descrambles the scrambled bitstream in accordance with the descrambling data read by said read unit.
6. An apparatus according to claim 1, further comprising a read unit, adapted to read selection data for selecting the object, the selection data being stored in an IC card, and a selection unit, adapted to select the predetermined object from the plurality of objects in accordance with the selection data read by said read unit.
7. An apparatus according to claim 1, wherein the plurality of objects include at least a video object.
8. An apparatus according to claim 7, wherein the plurality of objects include at least an audio object.
9. An apparatus according to claim 8, wherein the plurality of objects include at least a scene description object.
10. An apparatus according to claim 1, further comprising a monitor unit, arranged to monitor the object data synthesized by said synthesis unit.
11. An apparatus according to claim 1, further comprising a communication unit, arranged to perform data communication with an external device, said communication device transmitting, to said external device, information representing that the bitstream is decoded.
12. An apparatus according to claim 11, wherein said communication unit performs data communication through the Internet.
13. A decoding method comprising the steps of:
inputting a bitstream obtained by coding a plurality of object data in units of objects and multiplexing the coded data, wherein the plurality of object data are data which provide a desired scalability in accordance with a combination among the plurality of object data;
separating coded data of each object from the bitstream;
judging permission of reproduction of the coded data by using intellectual property and management protection data included in the bitstream;
selecting predetermined object data from among the plurality of object data according to a judgment result obtained in said judging step and the level of reproduction-permitted scalability;
decoding the coded data of the selected object data, and outputting the decoded data; and
synthesizing the object data outputted in said decoding step.
14. A computer-readable storage medium which stores a program, said program comprising steps of:
a) input processing of inputting a bitstream obtained by coding a plurality of object data in units of objects and multiplexing the coded data, wherein the plurality of object data are data which provide a desired scalability in accordance with a combination among the plurality of object data;
b) separation processing of separating coded data of each object from the bitstream;
c) judgment processing of judging permission of reproduction of the coded data by using intellectual property and management protection data included in the bitstream;
d) selecting processing of selecting predetermined object data from among the plurality of object data according to a judgment result obtained in said judgment processing step and the level of reproduction-permitted scalability;
e) outputting processing of decoding the coded data of the selected object data, and outputting the decoded data; and
f) synthesis processing of synthesizing the object data outputted in said outputting processing.
15. An apparatus according to claim 1, wherein the plurality of object data includes data of different resolutions.