1. A redundant current-sum feedback actuator controller comprising:
an inner feedback control loop configured to:
receive a desired total coil current and a measured total coil current comprising a sum of coil currents of each of a plurality of actuation coils of an actuator as a feedback parameter in each of a plurality of controllers, wherein the actuation coils are configured to actuate the actuator; and
control the actuation coils based on a current-sum difference between the desired total coil current and the measured total coil current, wherein the measured total coil current is measured by magnetically summing magnetic flux generated by sensor coils of each of the controllers.
2. The redundant current-sum feedback actuator controller of claim 1, further comprising an actuation coil current sensor configured to sense the measured total coil current, and comprising:
the sensor coils configured to receive an actuator current that actuates one of the actuation coils respectively;
a magnetic core configured to receive the magnetic flux from the sensor coils; and
at least one sensor coupled to the magnetic core and configured to measure the measured total coil current.
3. The redundant current-sum feedback actuator controller of claim 1, further comprising an outer feedback control loop comprising a plurality of electrically independent outer control loops each configured to:
receive a desired actuator position and a measured actuator position; and
generate the desired total coil current based on the desired actuator position and the measured actuator position.
4. The redundant current-sum feedback actuator controller of claim 1, wherein the actuation coils comprise a common actuation power.
5. The redundant current-sum feedback actuator controller of claim 1, wherein the redundant current-sum feedback actuator controller controls an aircraft flight control surface.
6. The redundant current-sum feedback actuator controller of claim 1, further comprising a current amplifier operable to receive the current-sum difference between the desired total coil current and the measured total coil current and generate a command output to control the actuator.
7. The redundant current-sum feedback actuator controller of claim 6, wherein the desired total coil current comprises an output-current difference between a desired actuator current output and a measured actuator current output.
8. A redundant current-sum feedback actuator controller comprising:
an inner feedback control loop configured to:
receive a desired total coil current and a measured total coil current comprising a sum of coil currents of each of a plurality of actuation coils of an actuator as a feedback parameter in each of a plurality of controllers, wherein the actuation coils are configured to actuate the actuator; and
control the actuation coils based on a current-sum difference between the desired total coil current and the measured total coil current, wherein each of the controllers measure each other’s actuator coil current through an electrically independent means to measure a respective adjacent coil current and sums the respective adjacent coil current with a respective local coil current to create the measured total coil current as the feedback parameter.
9. The redundant current-sum feedback actuator controller of claim 8, further comprising an actuation coil current sensor configured to sense the measured total coil current, and comprising:
a plurality of sensor coils configured to receive an actuator current that actuates one of the actuation coils respectively;
a magnetic core configured to receive a magnetic flux from the sensor coils; and
at least one sensor coupled to the magnetic core and configured to measure the measured total coil current.
10. The redundant current-sum feedback actuator controller of claim 8, further comprising an outer feedback control loop comprising a plurality of electrically independent outer control loops each configured to:
receive a desired actuator position and a measured actuator position; and
generate the desired total coil current based on the desired actuator position and the measured actuator position.
11. The redundant current-sum feedback actuator controller of claim 8, wherein the actuation coils comprise a common actuation power.
12. The redundant current-sum feedback actuator controller of claim 8, wherein the redundant current-sum feedback actuator controller controls an aircraft flight control surface.
13. The redundant current-sum feedback actuator controller of claim 8, further comprising a current amplifier operable to receive the current-sum difference between the desired total coil current and the measured total coil current and generate a command output to control the actuator.
14. The redundant current-sum feedback actuator controller of claim 13, wherein the desired total coil current comprises an output-current difference between a desired actuator current output and a measured actuator current output.
15. A redundant current-sum feedback actuator controller comprising:
an inner feedback control loop configured to:
receive a desired total coil current and a measured total coil current comprising a sum of coil currents of each of a plurality of actuation coils of an actuator as a feedback parameter in each of a plurality of controllers, wherein the actuation coils are configured to actuate the actuator; and
control the actuation coils based on a current-sum difference between the desired total coil current and the measured total coil current, wherein an erroneous current through one of the actuation coils causes a current to flow in other actuation coils among the actuation coils and creates a magnetic flux opposing the erroneous current, thereby reducing force fight between actuators on a same surface.
16. The redundant current-sum feedback actuator controller of claim 15, further comprising an actuation coil current sensor configured to sense the measured total coil current, and comprising:
a plurality of sensor coils configured to receive an actuator current that actuates one of the actuation coils respectively;
a magnetic core configured to receive a sensor coil magnetic flux from the sensor coils; and
at least one sensor coupled to the magnetic core and configured to measure the measured total coil current.
17. The redundant current-sum feedback actuator controller of claim 15, further comprising an outer feedback control loop comprising a plurality of electrically independent outer control loops each configured to:
receive a desired actuator position and a measured actuator position; and
generate the desired total coil current based on the desired actuator position and the measured actuator position.
18. The redundant current-sum feedback actuator controller of claim 15, wherein the actuation coils comprise a common actuation power.
19. The redundant current-sum feedback actuator controller of claim 15, wherein the redundant current-sum feedback actuator controller controls an aircraft flight control surface.
20. The redundant current-sum feedback actuator controller of claim 15, further comprising a current amplifier operable to receive the current-sum difference between the desired total coil current and the measured total coil current and generate a command output to control the actuator.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A communication system, comprising:
means for recognizing an incoming telephone call and routing it to a selected user in the subscribing organization;
means for receiving a telephone message and routing it to a selected user in a subscribing organization;
means for recognizing an incoming e-mail message and routing it to a selected user in the subscribing organization;
means for recognizing an incoming FAX message and routing it to a selected user in the subscribing organization;
means enabling users in the subscribing organization to respond to telephone calls, and telephone, E-mail and FAX messages directed to them;
means permitting a user in the subscribing organization to communicate with other users in the subscribing organization regarding possible appointments and tasks within the subscribing organization;
means for connecting the system to a global computer network so that users in the subscribing organization have access to the communication system via said network;
processing means for maintaining operating control over the communication system; and
a single database means for storing data relating to the communication system.
2. The system of claim 1, including means for accepting a telephone call from a calling party by a called user in the subscribing organization and for connecting the called user with the calling party upon acceptance of the call by the called user.
3. The system of claim 1, including means for checking the status of the system upon receipt of a telephone call and for disconnecting the telephone call if the system is not functioning properly.
4. The system of claim 2, wherein the system receives the telephone number of the called user and also the telephone number of the calling party.
5. The system of claim 1, including means for following the location of a called user through a selected sequence of telephone numbers previously identified by the called user.
6. The system of claim 5, wherein said selected sequence of telephone numbers is stored in the database.
7. The system of claim 1, including means enabling the user to access messages directed to said user by voice recognition or activation of a selected key on a touch tone telephone following completion of a user validation process.
8. The system of claim 1, wherein a user can request an appointment or a task for at least one other user in the subscribing organization.
9. The system of claim 1, wherein the system has the capability of providing reminders to users concerning previously scheduled appointments and tasks involving said users.
10. The system of claim 1, including means permitting a selected user recipient of an E-mail message to send an E-mail reply to the sender of the message, to forward the message to another E-mail address, or to forward the E-mail message to a FAX machine.
11. The system of claim 1, including means permitting a called user to reply to a voice message by voice or by E-mail, or to forward the voice message to E-mail or to another telephone.
12. The system of claim 1, including means permitting the selected user recipient to reply to a FAX message by voice, or by E-mail, or to forward the FAX message to an E-mail address or to a FAX number.
13. The system of claim 1, wherein appointments accepted by a user will be scheduled in a calendar portion of the system associated with said user.
14. The system of claim 1, wherein task assignments accepted by a user will appear in a task list portion of the system associated with said user.
15. The system of claim 1, including means permitting users to initiate establishment of a group within the subscribing organization and to invite other users in the subscribing organization to participate therein.
16. The system of claim 1, including means permitting users to initiate establishment of a group which includes members from without the subscribing organization.
17. The system of claim 15, wherein group invitations which are accepted will result in a notification being sent back to the initiating user and will result in the establishment of a group calendar and a shared contact list accessible by all members of the group.
18. The system of claim 9, including means permitting a user to access all reminder messages for said user present in the database.
19. The system of claim 1, including a contact portion in the database accessible by users in the subscribing organization containing information concerning each of the users in the organization.
20. The system of claim 1, wherein the contact portion includes information concerning individuals outside of the organization.
21. The system of claim 19, wherein said information includes an E-mail address, a FAX number and telephone numbers.
22. The system of claim 19, including means permitting a user to update all information about said user in the communication system, including means for changing the time zone of the user.
23. The system of claim 22, including control means for controlling access to said user based upon the time zone in which said user is located.
24. The system of claim 21, wherein the time zone location of said user may be changed by said user speaking the actual time where said user is located.
25. The system of claim 22, wherein the time zone location of said user may be changed to a new time zone location by said user indicating the number of hours and direction traveled from a previous time zone location .
26. A communication system, comprising:
means for recognizing incoming telephone calls and telephone, E-mail and FAX messages to a selected user in a user organization and routing said calls and messages to said selected user;
means for storing said messages in and retrieving said messages from a single system database;
means enabling said selected user to respond to said messages; and
means in the database for co-relating messages from a sending party with information in the database concerning said sender and providing said information to said selected user.
27. The system of claim 26, wherein all the messages are stored as separate records in the database, but are related based upon preselected criteria.
28. The system of claim 27, wherein the preselected criteria is association with an individual user.
29. The system of claim 26, including means for establishing appointments and tasks involving selected users within the user organization and for establishing and maintaining calendar information for said users based on acceptance of appointments and tasks, said calendar information being stored and maintained in the database, integrated with said message information relative to each said user.
30. The system of claim 26, including means for connecting a telephone call from a calling party to a called user in the user organization, following acceptance of the telephone call by the called user.
31. The system of claim 26, wherein individual users have access to the communication system via a network connection.
31. A communication system, comprising:
means for recognizing incoming telephone calls and telephone, E-mail and FAX messages to a selected user in a user organization and routing said calls and messages to said selected user;
means for storing said messages in and retrieving said messages from a single system database;
means enabling said selected user to respond to said messages; and
means for storing information concerning users in the user organization, and other selected contact individuals, in the system database, wherein said stored information is related to other selected information in the database by an identification of the user or other contact individual associated with said stored information.
33. The system of claim 32, wherein incoming messages are indicated to be coming from an identified user or a contact individual, and wherein the related information in the database is available to the selected user for reply to the incoming messages.
34. The system of claim 32, wherein the stored information includes the E-mail address, telephone number and FAX number of the identified user or contact individual.
35. The system of claim 32, wherein all messages are stored as separate records in the database and wherein the records are integrated in accordance with preselected criteria.
36. The system of claim 32, including means for establishing appointments and tasks involving selected users within the organization and for establishing and maintaining calendar information for the users in the organization, based on acceptance of said appointments and tasks by said users, wherein said calendar information for each of the users is integrated with the messaging information in the system database.
37. The system of claim 33, wherein individual users have access to the communication system via a network connection.
38. A communication system, comprising:
means for recognizing incoming telephone calls, and telephone, E-mail and FAX messages to a selected user in a user organization and routing said messages to said selected user;
means for storing said messages in and retrieving messages from a single system database;
means enabling said selected user to respond to said messages;
means for receiving and connecting an incoming telephone call to a called user, upon acceptance of the call by the called user; and
means for establishing and maintaining a calendar of accepted appointments and tasks for each user in the organization, wherein the calendar information is integrated with the message information in the system database relative to each user.
39. The system of claim 38, wherein each item of calendar information is stored as a separate record in the database, the individual records being connected together in accordance with preselected criteria.
40. The system of claim 38, wherein the calendar includes reminders, personal appointments and other events relating to the calendar schedule of the individual users.
41. The system of claim 38, wherein calendar information is related to the message information in the database on the basis of a user’s identification.
42. The system of claim 38, wherein users in the organization have access to the communication system via a network connection.
43. A system for updating time zone information for use in a communication system involving various modes of communication relative to individual users in an organization, comprising:
means in a system database for maintaining the time zone of the location of the individual users in the communication system;
means for controlling the routing of messages to individual users based on the time zone location of the users, in accordance with predetermined criteria; and
means for establishing a new time zone for a user, wherein the controlling means thereafter controls the routing of messages based on the new time zone.
44. The system of claim 43, including means for entering the identity of a new time zone location for said user, wherein the controlling means thereafter controls the routing of messages to said user based on the new time zone.
45. The system of claim 44, wherein the entering of the identity of the new location is by voice.
46. The system of claim 44, wherein the entered time zone location is the name of a city or an airport code.
47. The system of claim 43, wherein the new time zone is established by said user indicating the number of hours and direction traveled from a previous time zone location.