Sony Corporation

Sony Group Corporation

Koichi Matsuno

Ichiro Hino

Katsumi Hirota

Shinji Okazaki

Hirokazu Takagaki

The present invention relates to an information processing device configured to perform a process of creating, on the basis of original content, at least a first content having a data size smaller than a data size of the original content and a second content having a data size smaller than the data size of the first content, and a process of transferring the original content, the first content, and/or the second content.

Information processing device and information processing method

When a radio communication is made between a predetermined base station and a communication terminal, the communication terminal is allowed to make a communication if a predetermined registration processing is made. If the above registration processing is not executed, then predetermined functions other than a communication function of the communication terminal are limited. Moreover, when a predetermined operation mode is set by an operation means, at least a transmission processing at a radio communication means is stopped and an execution of predetermined functions other than the radio communication processing is not restricted. Thus, when a communication terminal apparatus incorporates therein other functions than an audio reproducing function, operation of such function can be limited properly. Moreover, when other functions such as an audio reproducing function are incorporated into a communication terminal apparatus, operations of the functions thus incorporated can be limited properly and the communication functions can be stopped properly.

Method of controlling a communication terminal having a plurality of functions, communication terminal apparatus, communication control system

A method of controlling a communication terminal and a communication terminal that communicates with a base station. The communication terminal having one or more functions different from a communication function, and the execution of the different functions being limited based on a registration process including receiving and registering controlling data transmitted by the base station.

A controllable crystal oscillator of a receiver having a mixer producing an IF signal is controlled by a feedback loop that includes a phase detector. The IF signal is delayed by an odd multiple of .pi./2 and fed to one input of an exclusive-OR circuit, with the other input receiving the IF signal directly. The phase detection signal from the exclusive-OR circuit can be counted and converted to an analog voltage when the oscillator is a voltage controlled oscillator or it can be counted and used as a digital control signal when the oscillator is a data controlled oscillator.

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Kanagawa, Japan

Koichi Matsuno