Abstract: A power management method is applicable to an electronic device having GPS navigation software and a GPS module for executing the navigation software. First, the data storage power (i.e. the RTC power) is enabled when the electronic device is powered on, and whether the electronic device receive an external power is detected; if yes, the master power (i.e. the RF power) is enabled and the GPS module is enabled to perform an initialization process and continue detecting whether the electronic device receives an external power; it no, the master power is disabled and detecting whether the electronic device receives an external power continues. Compared with the prior art, the power management method of the present invention, by managing powers installed in the electronic device and corresponding to the GPS module, increases the possibility for the navigation software to enter the hot start mode, and advances user's convenience.

Abstract: An itinerary planning system and method applicable to data processing systems is proposed, comprising: a database having travel information and itinerary planning conditions; a setting module for receiving information on itinerary planning conditions set by the user; a searching module for retrieving from the database the travel information that corresponds to itinerary planning conditions set by the user; and a planning module for creating an itinerary based on itinerary planning conditions and the correspondent travel information retrieved from the database, thereby building an itinerary from the database according to itinerary planning conditions set by the user.

Abstract: A group global positioning system includes a plurality of positioning signal processing devices with a global positioning function and a plurality of radio signal processing devices corresponding to the positioning signal processing devices. With one of the corresponding radio signal processing devices, one of the positioning signal processing devices outputs analog global positioning information to the remaining ones of the positioning signal processing devices which then performs analog-to-digital conversion on the analog global positioning information and recovers digital global positioning information, thus allowing the remaining ones of the positioning signal processing devices to execute the global positioning function and display related information. The present invention discloses a grouping technique for simultaneously displaying on the positioning signal processing devices the digital global positioning information thereof.

Abstract: A driving route planning system includes a data processing center for collecting real-time traffic information and storing the collected real-time traffic information in a database. The data processing center includes a transmission interface for emitting the stored real-time traffic information receiving requests. The system further includes an electronic device including an electronic route guiding program for planning driving routes, a communication interface for connecting to the data processing center to receive the traffic information transmitted from the data processing center and emit real-time traffic information updating request to the data processing center, and a storage unit for receiving the real-time traffic information received by the communication interface.

Abstract: A device to protect fans from overheating and overloading with driving current. The fan protection device of the present invention monitors the temperature and current change of the operating fan. When the temperature or the current float surpasses a predetermined value, the protection device cuts off the fan's power supply and avoids damage to the unit.

Abstract: An easily releasable locking device includes upper and lower assemblies of latch and cavity members adapted to be disposed between a right lateral wall of a battery pack and a right inner side wall of a bottom wall of a portable battery-powered apparatus respectively, and aligned with each other and spaced apart in a transverse direction. The latch member and the cavity member of each assembly are disposed on the right inner side wall and the right lateral wall, respectively. The latch members are biased by two biasing members to be movable towards the corresponding cavity members. Two ejecting members are disposed between the right lateral wall and the right inner side wall, respectively.

Abstract: A modular computer assembly includes a peripheral circuit module having a first housing half, a connecting circuit board mounted inside the first housing half, and peripheral interface circuit units mounted on the connecting circuit board. The connecting circuit board has peripheral interface connectors to connect with the peripheral interface circuit units, and a mother board connector mounted thereon. The mother board connector is electrically connected to the peripheral interface connectors. The assembly further has a system circuit module including a second housing half and a mother board mounted inside the second housing half. The mother board has an insert edge insertable into the mother board connector to establish electrical connection with the peripheral circuit module. The second housing half complements with the first housing half to form a computer housing when the system circuit module and the peripheral circuit module are assembled.

Abstract: A computer apparatus having a movable liquid crystal display (LCD) is disclosed herein. The peripherals are set on the top side or surrounding area of the surface of the main computer. The movable LCD is designed to cover all peripherals such that the peripherals can be concealed behind the movable LCD in normal time. A mechanical slipping apparatus is set between the movable LCD and the main computer. When a user wants to use these peripherals, they can be exposed via horizontally moving or vertically moving the movable LCD. The movable LCD can be driven to move by using a manual method or electromotive method via the mechanical slipping apparatus. Therefore, the peripherals can be exposed to the user for utilizing them.