Abstract: This disclosure provides a search device, a person loss prevention system and an operation method. The person loss prevention system comprises an electronic device and the search device. The search device includes a receiver and a transmitter electrically connected with the electronic device. The person loss prevention system instructs the transmitter to transmit a predetermined signal to the receiver by the operation method. After the receiver receives the predetermined signal, the receiver sends a feedback signal to the electronic device. The electronic device adjusts a waveform of a sound signal according to the feedback signal and transmits the sound signal to the search device. The search device plays the sound signal through a speaker unit. Thereby, the user of the electronic device immediately determines the position, the distance and the direction of the receiver.

Abstract: A portable electronic device includes a body and a support structure. The support structure pivotally connected to the body includes a first structural member and a second structural member, and the first structural member is pivotally connected to the body along a first axis. The second structural member pivotally connected to the first structural member along a second axis includes a first support region and a second support region. The combination of the first structural member and the second structural member rotates around the first axis towards or away from the body, and when it rotates away from the body, the first support region leans against a first support surface. The second structural member rotates around the second axis towards or away from the body, and when it rotates away from the body, the second support region leans against the support surface.

Abstract: This disclosure provides a search device, a person loss prevention system and an operation method. The person loss prevention system comprises an electronic device and the search device. The search device includes a receiver and a transmitter electrically connected with the electronic device. The person loss prevention system instructs the transmitter to transmit a predetermined signal to the receiver by the operation method. After the receiver receives the predetermined signal, the receiver sends a feedback signal to the electronic device. The electronic device adjusts a waveform of a sound signal according to the feedback signal and transmits the sound signal to the search device. The search device plays the sound signal through a speaker unit. Thereby, the user of the electronic device immediately determines the position, the distance and the direction of the receiver.

Abstract: A portable electronic device includes a body and a support structure. The support structure pivotally connected to the body includes a first structural member and a second structural member, and the first structural member is pivotally connected to the body along a first axis. The second structural member pivotally connected to the first structural member along a second axis includes a first support region and a second support region. The combination of the first structural member and the second structural member rotates around the first axis towards or away from the body, and when it rotates away from the body, the first support region leans against a first support surface. The second structural member rotates around the second axis towards or away from the body, and when it rotates away from the body, the second support region leans against the support surface.

Abstract: A case of an extending base for an electronic device includes a body, a cover, and at least two link elements. The body has a hollow. The cover is disposed aside the hollow. Each link element has a first pivot part, a first block part, a second pivot part, and a first elastic member. The first pivot part has a first end pivoted on the body and a second end connected to the first block part. The second pivot part has a first end pivoted on the cover and a second end connected to the first block part. The first elastic member provides a force to push the first block part from a first position to a second position so as to correspondingly push the cover. Herein, when the first block part is positioned at the first position, the first block part is separated from the body and the cover covers the body. In addition, when the first block part is positioned at the second position, the first block part is in contact with the body and the cover is separated from the body.

Abstract: The present invention is to provide a portable communication device with a rotating display, which comprises a phone body and a cover hingedly connected to the phone body. Thus, the cover may pivot about the phone body either in one direction to close onto the phone body or in the other opposite direction to open from the phone body. The cover comprises an opening for receiving a display having a first pivotal element provided at either side of the display and a second pivotal element provided at either side of the opening. The first pivotal element is connected to the second pivotal element at the same side and is adapted to turn relative thereto to form a pivot such that rotating the display in the opening on the opposite pivots will appropriately dispose either the screen of the display facing the phone body or in a direction opposing the phone body.

Abstract: A case of an extending base for an electronic device includes a body, a cover, and at least two link elements. The body has a hollow. The cover is disposed aside the hollow. Each link element has a first pivot part, a first block part, a second pivot part, and a first elastic member. The first pivot part has a first end pivoted on the body and a second end connected to the first block part. The second pivot part has a first end pivoted on the cover and a second end connected to the first block part. The first elastic member provides a force to push the first block part from a first position to a second position so as to correspondingly push the cover. Herein, when the first block part is positioned at the first position, the first block part is separated from the body and the cover covers the body. In addition, when the first block part is positioned at the second position, the first block part is in contact with the body and the cover is separated from the body.

Abstract: A notebook computer expansion base with a slidable cover structure is provided, which is applicable for the expansion of various types of notebook computers. Each notebook computer has an expansion joint and a plug specification, and the expansion base includes a base and a slidable cover. The base has an expansion component and an expansion slot electrically connected to each other, and the expansion slot is connected with the expansion joint directly, such that the expansion component is electrically connected with the notebook computer, so as to expand the expansion component to the notebook computer. The slidable cover is disposed on the base and being sildable, corresponding to a plugging reference, and the distance between the slidable cover and the expansion slot is adjusted through sliding the slidable cover, so as to be applicable for different plug specifications.

Abstract: The present invention discloses a method and a mobile phone capable of controlling a keyboard lock thereof, wherein an optical sensor and a software are installed to the mobile phone, and the software controls the locking and unlocking of the keyboard of the mobile phone according to a light source detected by the optical sensor, such that the keyboard of the mobile phone will be locked automatically, if a user puts a mobile phone in a dark place such as a bag or a pocket; and the keyboard will be unlocked automatically, if the mobile phone is placed in a bright place. In addition, the keyboard of the mobile phone can be locked or unlocked compulsorily according to the original setting of the keyboard lock of the mobile phone set by a user.

Abstract: The present invention discloses an earphone apparatus capable of saving power consumption that comprises a transmission line, a connecting portion disposed at an end of the transmission line and coupled to a multimedia electronic device for receiving an audio source signal transmitted from the multimedia electronic device, at least one audio output portion disposed at another end of the transmission line and the each audio output portion is worn at a human ear for outputting the audio source signal from the connecting portion through the transmission line, and a sensing portion disposed at an end of the each audio output portion for detecting whether or not the audio output portion is in contact with the human ear and transmitting a play signal to the multimedia electronic device through the connecting portion, such that the multimedia electronic device outputs the audio source signal from the audio output portion.

Abstract: The present invention is to provide a portable communication device with a rotating display, which comprises a phone body and a cover hingedly connected to the phone body. Thus, the cover may pivot about the phone body either in one direction to close onto the phone body or in the other opposite direction to open from the phone body. The cover comprises an opening for receiving a display having a first pivotal element provided at either side of the display and a second pivotal element provided at either side of the opening. The first pivotal element is connected to the second pivotal element at the same side and is adapted to turn relative thereto to form a pivot such that rotating the display in the opening on the opposite pivots will appropriately dispose either the screen of the display facing the phone body or in a direction opposing the phone body.