1. A method for endpoint location and identification comprising:
transmitting a registration request from an endpoint to a server;
storing an address of the endpoint;
requesting a location identification number from the endpoint;
storing the location identification number; and
associating the address of the endpoint with the location identification number.
2. The method of claim 1, further comprising:
transmitting an emergency number contact from the endpoint;
routing the emergency number contact to the server;
retrieving the location identification number address associated with the address of the endpoint;
connecting the endpoint to the emergency number contact; and
transmitting the location identification number associated with the address of the endpoint to the emergency number contact.
3. The method of claim 2, further comprising:
determining from the location identification number an appropriate public safety answering point to connect the endpoint.
4. The method of claim 1, wherein the address of the endpoint is an IP address.
5. The method of claim 1, further comprising:
providing a user with a list of location identification numbers associated with the user.
6. The method of claim 1, further comprising:
determining whether the endpoint sending the registration request is a transient endpoint.
7. The method of claim 1, wherein the endpoint and the server use session initiation protocol.
8. A system for endpoint location identification comprising:
a module for transmitting a registration request from an endpoint to a server;
a module for requesting a location identification number from the endpoint; and
a database for storing an address of the endpoint and the location identification number.
9. The system of claim 8, further comprising:
a module for transmitting an emergency number contact from the endpoint to the server;
a module for retrieving the location identification number from the database;
a module for connecting the endpoint to the emergency number contact; and
a module for transmitting the location identification number associated with the address of the endpoint to the emergency number contact.
10. The system of claim 8, further comprising:
a module for determining from the location identification number an appropriate public safety answering point to connect the endpoint.
11. The system of claim 8, wherein the address of the endpoint is an IP address.
12. The system of claim 8, further comprising:
a module for providing a user with a list of location identification numbers associated with the user.
13. The system of claim 8, further comprising:
a module for determining if the endpoint sending the registration request is a transient endpoint.
14. The system of claim 8, wherein the endpoint and the server use session initiation protocol.
15. A system for location identification comprising:
a means for transmitting a registration request from a means for communicating to a server;
a means for requesting a location identification number from the means for communication; and
a means for storing an address of the means for communication and the location identification number in a database.
16. The system of claim 15, further comprising:
a means for transmitting an emergency number contact from the means for communicating to the server;
a means for retrieving the location identification number from the database;
a means for connecting the means for communication to the emergency number contact; and
a means for transmitting the location identification number associated with the address of the means for communication to the emergency number contact.
17. The system of claim 15, further comprising:
a means for determining from the location identification number an appropriate public safety answering point to connect the means for communication.
18. The system of claim 15, wherein the address of the means for communication is an IP address.
19. The system of claim 15, further comprising:
a means for providing a user with a list of location identification numbers associated with the user.
20. The system of claim 15, further comprising:
a means for determining if the means for communication sending the registration request is a transient means for communication.
The claims below are in addition to those above.
All refrences to claims which appear below refer to the numbering after this setence.
1. A method of manufacturing a thin film magnetic head,
the thin film magnetic head comprising:
a thin film coil generating magnetic flux, and
a pole layer comprising a laminate including a main pole layer having a plane shape including a uniform width region with a uniform width determining a recording track width of a recording medium and a widening width region with a larger width than the uniform width region, and having an end surface exposed to a recording-medium-facing surface facing the recording medium, an auxiliary pole layer being disposed so as to face a part of the main pole layer, and a non-magnetic layer being disposed in a region where the main pole layer and the auxiliary pole layer face each other so as to be sandwiched between these two layers, and the pole layer emitting the magnetic flux generated in the thin film coil to the recording medium,
the method comprising:
forming a first mask layer to become a mask determining the widening width region;
forming a second mask layer to become a mask determining the uniform width region, wherein the first mask layer and the second mask layer are independently formed through separate steps; and
completing formation of the pole layer through a series of patterning steps for at least two of the main pole layer, the auxiliary pole layer and the non-magnetic layer by use of the first mask layer and the second mask layer.
2. A method of manufacturing a thin film magnetic head according to claim 1, wherein
a step of forming the first mask layer is carried out before a step of forming the second mask layer.
3. A method of manufacturing a thin film magnetic head according to claim 1, wherein
a step of forming the pole layer comprises the steps of:
forming and laminating a precursory main pole layer as a preparatory layer of the main pole layer, a precursory non-magnetic layer as a preparatory layer of the non-magnetic layer and a precursory auxiliary pole layer as a preparatory layer of the auxiliary pole layer in this order,
selectively forming the first mask layer on the precursory auxiliary pole layer in a region corresponding to the widening width region,
patterning the precursory auxiliary pole layer through etching by use of the first mask layer as a mask so as to form a precursory auxiliary pole layer pattern,
selectively forming the second mask layer on the precursory auxiliary pole layer pattern and its surroundings in a region corresponding to the uniform width region and the widening width region,
patterning the precursory non-magnetic layer through etching by use of the auxiliary pole layer pattern and the second mask layer as masks so as to form the non-magnetic layer,
patterning the precursory main pole layer through etching by use of the second mask layer, the precursory auxiliary pole layer pattern and the non-magnetic layer as masks so as to form the main pole layer, and
patterning the precursory auxiliary pole layer pattern through etching by use of the second mask layer as a mask so as to form the auxiliary pole layer.
4. A method of manufacturing a thin film magnetic head according to claim 1, wherein
a step of forming the pole layer comprises the steps of:
forming and laminating a precursory auxiliary pole layer as a preparatory layer of the auxiliary pole layer and a precursory non-magnetic layer as a preparatory layer of the non-magnetic layer in this order,
selectively forming the first mask layer on the precursory non-magnetic layer in a region corresponding to the widening width region,
patterning the precursory non-magnetic layer by use of the first mask layer as a mask so as to form the non-magnetic layer,
patterning the precursory auxiliary pole layer through etching by use of the first mask layer as a mask so as to form the auxiliary pole layer,
forming a precursory main pole layer as a preparatory layer of the main pole layer on the non-magnetic layer and its surroundings,
selectively forming the second mask layer on the precursory main pole layer in a region corresponding to the uniform width region and the widening width region, and
patterning the precursory main pole layer through etching by use of the second mask layer as a mask so as to form the main pole layer.
5. A method of manufacturing a thin film magnetic head according to claim 1 wherein completing formation of the pole layer comprises:
completing formation of the pole layer through a series of patterning steps for the main pole layer, the auxiliary pole layer and the non-magnetic layer by use of the first mask layer and the second mask layer.