Fujitsu Corporation

Ichiro Ayukawa

Kimio Watanabe

Kazutoshi Kawamura

Hisamichi Hazama

Shingo Mizuno

Yuji Shiraishi

Kimihiko Yoshimura

Tadayuki Sakama

Yoshiko Koizumi

Yasushi Miyagawa

Sachio Miyazaki

Yoshihito Kumamoto

Takako Nagamine

A system for monitoring objects based on monitor information indicative of statuses of the objects includes a local monitoring apparatus configured to store therein a first set of the monitor information and a second set of the monitor information, to make the first set of the monitor information reflect an operation performed on the local monitoring apparatus, and to display the first set of the monitor information on the local monitoring apparatus, and a central monitoring apparatus configured to make the second set of the monitor information reflect an operation performed on the central monitoring apparatus through communication with the local monitoring apparatus, and to display the second set of the monitor information on the central monitoring apparatus.

Multi-level management system for monitoring communication apparatuses

When a wireless channel fails, a working signal and a protection signal are synchronized and switching is performed without instantaneous disconnection. Each working unit of a plurality of working units is provided with a wireless-channel failure detector for detecting a failure that has occurred in a working wireless channel; a synchronization detecting circuit for detecting synchronization between a working wireless channel and a protection wireless channel; a changeover switch for selecting a signal from either the protection wireless channel or a working wireless channel without instantaneous disconnection; and a unit failure detector for detecting a failure that requires switching of a unit. When a failure develops in a wireless channel and a working wireless channel and the protection wireless channel are synchronized, a radio protection switching device controls the changeover switch to switch between working and protection wireless channels without instantaneous disconnection. Further, when failure that requires switching of a unit occurs, the radio protection switching device controls a unit changeover switch to switch between a working unit and the protection unit.

SDH wireless transmission apparatus

A call controlling apparatus for receiving input signals each including a phone number through respective communication channels and making a call. The apparatus provides a plurality of telephones corresponding respectively to the channels and a storage storing respective phone numbers of the telephones; detects the phone number in the input signals; determines in which input signals the phone number is detected; selects the phone number based on the determining; compares the selected phone number with those stored in the storage and makes the call on the corresponding telephone depending on a result of the comparison.

Call controlling apparatus and method used for an order-wire system in a communication system

A communication monitoring and controlling apparatus for easily collecting monitoring information is connected to an existing network composed of a plurality of communication equipment. A management information collecting unit collects management information of each of the communication equipment. The management information is in an existing network management information format. A format converting unit converts the management information in the existing network management information format into management information in a new-type network management information format. The new-type network management information format is a format used by the new-type network, and handles the existing network composed of the communication equipments as one network element. The converted management information is transmitted to at least one operation system of the new-type network by a transmitting unit.

Communication monitoring and controlling apparatus

An SDH/PDH monitoring and integrating apparatus collects control data generated in a monitoring unit employed in each PDH radio apparatus in a PDH communication network, transforms the control data into a control command that can be processed in an SDH communication network and transmits the control command to the SDH communication network. The control command transmitted to the SDH communication network arrives at an operation system by way of components such as a DCC (Digital Communication Channel), a monitoring unit employed in an SDH radio apparatus or employed in an SDH transmission apparatus and an X.25 network. The operation system extracts control data generated in the PDH communication network from the control command, executing the same processing as that of the conventional PDH monitoring panel for the extracted control data.

SDH-communication-network/already existing communication network

A control system for a communication apparatus has capability of coping with bus extension. The control system includes a control section and a plurality of controlled sections connected to the control section via a bus. Each controlled section accommodates at least one object to be controlled. The control section has a first interface for extension bus generation which includes a latch section and a bus transmission section. The controlled section has a second interface section for extension bus generation which includes a reception section, a judgment section, and a permission signal send-back section. The bus is formed by a bus which complies with a standard regarding mutual connection between apparatuses in a data communication system so as to send and receive pieces of information, each including a predetermined number of bits, and control signals. This makes it possible to suppress the hardware cost of channel sections and to efficiently perform highly functional monitoring and controlling.

Control system for coping with bus extension in controlling a

A transmitting power control system includes a first-mode arithmetic operation unit for arithmetically obtaining an actual up-link rain attentuation amount based on a total rain degradation amount and a down-link rain attenuation amount and arithmetically obtaining a ratio of the actual up-link rain attenuation amount to the down-link rain attenuation amount. A measurement executable judgement unit determines whether or not the measurement is possible based on the originating station returning wave. A second-mode arithmetic operation unit is connected to the first mode arithmetic operation unit for presuming and arithmetically obtaining an up-link rain attenuation amount based on the actual rain attenuation amount ratio and the down-link rain attenuation amount by latching the rain attenuation amount ratio when the measurement executable judgement unit determines that the measurement is impossible.

Growing community of inventors

Kawasaki, Japan

Ichiro Ayukawa