Motorola

About: Motorola is a company organization based out in Schaumburg, Illinois, United States. It is known for research contribution in the topics: Signal & Communications system. The organization has 27298 authors who have published 38274 publications receiving 968710 citations. The organization is also known as: Motorola, Inc. & Galvin Manufacturing Corporation.

A method for reading a plurality of remote meters

Abstract: A remote meter reading system (10) includes a group of meter interface units in which each meter interface unit (12) operates between periods of activity and inactivity. The plurality of meter interface units (12) are assigned to groups, each of the meter groups having a sleep rate assigned. Upon reading each of the meter interface units (12), the sleep rate assigned to the meter interface units (12) in each of the groups is advanced to the next group's sleep rate. This process is cycled through all of the meter groups in the system in order for all of the meter interface units to have approximately the same amount of overall battery savings.

Method and system for generating a user's telecommunications bill

Abstract: A method for generating a bill includes a communication node including an address book. A determination is made as to whether a phone number called by the user matches a stored number in the address book. A bill including a name and a location associated with the stored number is generated.

Directive antenna with reflectors and directors

Abstract: An antenna system of the type wherein the radiating pattern may be controlled to direct the radiation of a signal in a selected direction. The system includes a plurality of radiating elements which are affixed to a coplanar in planes which are equiangular from each other. In response to a selected direction of radiation, control circuitry applies the signal to the coplanar antenna elements which are in a plane perpendicular to the selected radiating direction. Further, the control circuitry varies the electrical length of the remaining elements such that some act to direct, and other reflect the radiated signal.

Selective call radio with contraposed touchpad

Abstract: A selective call radio (10), including a housing (12), has a display (18) and touchpad (22) of the same size. The display is mounted to a surface on one side of the housing, and the touchpad is mounted to another surface on an opposite side of the housing, directly opposite the display. A screen surface of the display and a touch surface of the touchpad are parallel and have a same number of edges. Sliding of a user's fingertip on the touchpad in a right-to-left direction causes movement of a pointer (26) in a left-to-right direction, and vice versa. Movement on the touchpad causes movement in an identical amount on the display.

Encryption and decryption method and apparatus

Abstract: A method for efficient encryption and decryption (100) comprises the steps of encrypting a message (104) at a sending unit which is to be sent to a receiving unit using a mesage key (106) and appending to the message at the sending unit the message key encrypted (108 and 109) using a receiver's public key (110). Subsequently, a sender's certificate (116) is appended at a first server (302) and extracted at a second server (310). The message key is then decrypted at the receiving unit using a receiver's private key (140) to provide a decrypted message key. Subsequently the message is decrypted using the decrypted message key (142 and 143) and authenticated by comparing a pair of digest (152 and 156).