Mitsubishi Denki Kabushiki Kaisha

Hitachi, Ltd.

Mitsubishi Electric Corporation

Takashi Kashiwagi

Yoshinori Uchida

Naohito Tomoe

Kenichi Ishida

Atsushi Ninomiya

Masayuki Nakazawa

Masaru Yokoyama

Kuniyuki Suzuki

Taisei Suemitsu

Kazuyuki Yanase

Taisuke Matsushita

The present invention provides a portable ultrasound system being superior in operability and design properties, and being allowed to take various storage postures fitting to the volume of a storage place. The keyboard unitprovided with an input device such as a keyboard and the display unitincorporating a display part are mounted on the main body unitthat incorporates a main part of the ultrasound diagnostic system, respectively about the rotation axes Pand P, independently, in such a manner as rotatable, and further the rotation axes Pand Pare on a common axis P. The rotation axis partsupporting the display unitis supported by the bearing of the main body unit in a part lower than the axis P, allowing the display unit to be rotatable about the rotation axis Q that is orthogonal to the axis P. With this configuration, it is possible to take an operating posture that allows the display unitbeing upright to swivel, and multiple storage postures in which the posture of the main body unitwith respect to the keyboard unitand the display unitare variously changed.

Portable ultrasound system

In a mobile communications system in which a mobile station is capable of communicating simultaneously with a plurality of base stations, the resources of the plurality of base stations are managed under the control of the mobile station. For example, the mobile station specifies a resource to a base station with a resource specifying signal, the mobile station specifies a resource to a base station with a resource specifying signal, and the mobile station specifies a resource to a base station with a resource specifying signal.

Mobile communications system, mobile station and base station

A mobile communication system in which various access methods may be selected according to the user's priority. In the mobile communication system, each of a mobile station and radio base stations has a radio processor, which has TDMA, CDMA and FDMA communication units. The CDMA communication unit comprises channel coders each for performing a primary modulation to a transmitting signal, spread-spectrum code generators for respectively generating different spread-spectrum signals, a clock generator/controller for controlling the generation of chip clocks to control the generation of the spread-spectrum codes, oscillators for setting different carrier frequencies to outputs calculated as products, and a CPU for generally controlling various parts or elements to control the assignment of a CDMA signal or a TDMA signal to an arbitrary time slot transmitted from the TDMA communication unit. The radio processor transmits different signals of different access methods existing in each time slot of the same frame different signals.

Mobile communication system using various multiple access methods

A mobile communication system in which various access methods may be selected according to the user's priority. In the mobile communication system, each of mobile stations and radio base stations has a radio processor, which has TDMA, CDMA and FDMA communication units. The CDMA communication unit comprises channel coders each for performing a primary modulation to a transmitting signal, spread-spectrum code generators for respectively generating different spread-spectrum signals, a clock generator/controller for controlling the generation of chip clocks to control the generation of the spread-spectrum codes, oscillators for setting different carrier frequencies to outputs calculated as products, and a CPU for generally controlling various parts or elements to control the assignment of a CDMA signal or a TDMA signal to an arbitrary time slot transmitted from the TDMA communication unit. The radio processor transmits different signals of different access methods existing in each time slot of the same frame different signals.

A superheterodyne receiver is provided in which first and second envelope detectors having a function of regulating the gain and offset voltage are used to detect receive signal levels from first and second intermediate frequency signals. These receive signal levels are compensated with respect to a phase difference through a phase difference compensating circuit. The compensated signals are then summed by an adder to provide a receive signal level detection output.

Growing community of inventors

Amagasaki, Japan

Takashi Kashiwagi