1. A method for protecting digital goods upon sale over a computer network whereby the goods are encrypted with a key using a symmetric encryption method, the encrypted goods are transmitted over the computer network to a customer’s computer and decrypted there by the key, characterized in that the key is transmitted to the customer’s mobile communication terminal over a mobile phone network.
2. A method according to claim 1, characterized in that the customer is registered with a service operator before a first purchase and thereby transmits an identification feature that is uniquely linked with the user’s mobile communication terminal.
3. A method according to claim 2, characterized in that at registration the customer is assigned a personal identification number which is transmitted to the customer.
4. A method according to claim 3, characterized in that the personal identification number is transmitted to the customer’s mobile communication terminal over a mobile phone network or to the customer by means of a letter.
5. A method according to any of claims 2 to 4, characterized by the following steps:
the customer logs into the service operator’s computer network server from a computer while transmitting the identification feature stated at registration andor the associated personal identification number,
the identification feature andor associated personal identification number is checked,
the customer selects goods from a merchant’s range of goods,
the selected goods are encrypted by the key,
the encrypted goods are transmitted to the customer’s computer,
the key is transmitted to the customer’s mobile communication terminal as plaintext,
the goods are decrypted by a decryption algorithm on the customer’s computer using the transmitted key.
6. A method according to any of claims 1 to 5, characterized in that a plurality of goods are encrypted with one key jointly as a parcel.
7. A method according to any of claims 1 to 6, characterized in that the goods are personalized before transmission to the customer’s computer.
8. A method according to claim 7, characterized in that personalization is effected using the identification feature transmitted to the service operator at registration of the customer.
9. A method according to any of claims 1 to 8, characterized in that the key is a one-time key.
10. A method according to any of claims 1 to 9, characterized in that the key is transmitted as a text or speech message.
11. A method according to any of claims 1 to 10, characterized in that after decryption of the goods by the customer using the transmitted key, an acknowledgement of successful decryption is sent to the service operator.
12. A computer program with program code means for executing all steps according to any of the above claims when the program is executed on a computer.
13. A computer program with program code means according to claim 12 that is stored in a computer-readable data memory.
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 driving force transmission apparatus for an engine comprising:
a rotating shaft for transmitting rotational driving force;
a pulley positioned about the rotating shaft and driven by the engine;
a motor for generating a driving force;
a connecting portion fixed to the rotating shaft for directly transmitting the driving force of the motor to the rotating shaft;
an inner cylinder portion of the pulley having a first inner cylinder portion and a second inner cylinder portion which are axially adjacent to each other with an opening portion interposed therebetween,
a first rolling bearing and a one-way clutch each disposed between the first inner cylinder portion and the connecting portion, said clutch disengaging between the first inner cylinder portion and the connecting portion at engine low speed enabling transmission of the driving force of the motor to the rotating shaft and being engaged between the first inner cylinder portion and the connecting portion at a higher engine speed enabling the pulley to drive said rotating shaft; and
the first rolling bearing having an array of rolling elements, and a second rolling bearing disposed between the second inner cylinder portion and a fixed-side member.
2. The driving force transmission apparatus according to claim 1, wherein
the rolling elements of the first rolling bearing are balls.
3. The driving force transmission apparatus according to claim 1, wherein
an inner ring of the one-way clutch and an inner ring of the first rolling bearing are integrally formed as an integral inner ring, and an outer ring of the one-way clutch and an outer ring of the first rolling bearing are integrally formed as an integral outer ring.
4. The driving force transmission apparatus according to claim 3, wherein
an outer circumferential surface of the first inner cylinder portion of the pulley and an inner circumferential surface of the integral inner ring each have a screw portion.
5. The driving force transmission apparatus according to claim 3, wherein
the first inner cylinder portion has an inner circumferential surface which defines a tool fitting hole.
6. The driving force transmission apparatus according to claim 1, wherein
the connecting portion has a cylinder portion which is to be fitted to an axial end portion of the rotating shaft,
the cylinder portion having a screw portion which is to be fitted to the screw portion of the axial end portion of the rotating shaft and a tool fitting hole which is opened at an axial end, and
the axial end portion of the rotating shaft having a tool fitting hole or a tool fitting protrusion.
7. The driving force transmission apparatus according to claim 1, wherein
the motor is fixed to a motor fixing portion having an inner cylinder portion, which is interposed between the fixed-side member and the second rolling bearing, a flange portion extending through the opening portion, and an outer cylinder portion,
the inner cylinder portion of the motor fixing portion and the fixed-side member being fitted to each other in serrations or by a spline or a key, and
the inner cylinder portion of the motor fixing portion being held axially by a snap ring fitted to the fixed-side member.
8. The driving force transmission apparatus according to claim 1, wherein
the motor is disposed inside the pulley.
9. The driving force transmission apparatus according to claim 1, wherein
a rotor of the motor is integrated with the connecting portion.
10. The driving force transmission apparatus according to claim 1, wherein
the driving force transmission apparatus is used for an auxiliary machine of an automobile.