Abstract: A mobile device management system includes a mobile device, a locator unit, and an operation unit. The locator unit includes a transmitter and is disposed on or in the mobile device. The operation unit is configured to receive the wireless signal. The units are configured to determine a distance between the locator unit and the operation unit and to cause a notification device to perform a notification when the distance is greater than a threshold signal strength value. The mobile device can also be configured to send a wireless signal to the locator unit when the mobile device receives a call or a message. The operation unit can be used to control the mobile device. A method using the system can help a person remember to retrieve the mobile device, to know to pick up a phone call, or to control a mobile device remotely.

Abstract: A mobile device management system includes a mobile device, a locator unit, and an operation unit. The locator unit includes a transmitter and is disposed on or in the mobile device. The operation unit is configured to receive the wireless signal. The units are configured to determine a distance between the locator unit and the operation unit and to cause a notification device to perform a notification when the distance is greater than a threshold signal strength value. The mobile device can also be configured to send a wireless signal to the locator unit when the mobile device receives a call or a message. The operation unit can be used to control the mobile device. A method using the system can help a person remember to retrieve the mobile device, to know to pick up a phone call, or to control a mobile device remotely.

Abstract: An earphone produces an intelligently-changing stereo sound effect. The earphone includes an ear cup, at least one speaker disposed in the ear cup, a processing unit disposed in or attached to the ear cup and connected to the speaker, and at least one sensor disposed in or attached to the ear cup and connected to the processing unit. The sensor is configured to sense a movement of the earphone or an environmental change of the earphone and to send the processing unit a signal representing the movement or the environmental change. The processing unit is programmed to process the signal and to generate a changed stereo signal for the speaker. The changed stereo signal is changed according to the movement or the environmental change. The speaker is configured to receive the changed stereo signal and to generate a changed stereo sound effect according to the changed stereo signal.

Abstract: An earphone produces a three-dimensional stereo sound effect. The earphone has an ear cup with a front portion, a back portion, a front sound effect unit disposed in the front portion, a front sound resonator disposed in the front portion, a back sound resonator disposed in the back portion, and a back sound effect disposed in the back portion. A front speaker is disposed in the front portion of the ear cup. A back speaker is disposed in the back portion of the ear cup. A sound controller is disposed in the ear cup. A sound output unit is connected with the ear cup. The front speaker and the back speaker work together to create stereo sound in a first dimension and in a second dimension. One of the front speaker and the back speaker creates stereo sound in a third dimension.

Abstract: A multimedia play menu is generated into an auto playgroup organizer system for a multimedia player by using intelligence cursor/scroll sequence functions programmed for operation by an input device such as a hand-held mobile mouse. The intelligence cursor/scroll can sense any type of digitalized item or symbol displayed on the LED or LCD screen of the multimedia player. When the intelligence cursor/scroll function senses a click/press sequence symbol representing the position of a song, it will start to carry out a click/press sequence function as a user wishes. The more clicks/presses are applied by the intelligence cursor/scroll on the sequence symbol before a song/item, the higher the position for that song/item is created, analyzed, recorded and carried out.

Abstract: A sound direction/stereo effect 3D adjustable earphone in one aspect contains an adjustable headband clip to hold the left and right earphone parts. An adjustable holder is at the left and right ends of the earphone and at the topside of an ear cup. The ear cup contains a 3D adjustable ear speaker at the center of the earphone for delivery of sounds from the earphone to a user. A 3D direction adjustable unit works with the ear speaker. The adjustable unit contains a connector such as a little ball at one end to fit in a corresponding connector such as a hole at the holder and another connector such as a little ball to fit into another corresponding connector such as a hole at the speaker. In this way, the ear speaker can be freely pushed out/pulled in and pulled/pushed/rotated adjustably in X-Y-Z or three dimensions.