A multiple recording device management system including an intermediate multiple recording device managing apparatus, a vehicle recording device mounted in a police vehicle and synced to the managing apparatus, and a personal recording device carried by a police officer and wirelessly synced to the managing apparatus. The managing apparatus is operable to detect when the vehicle recording device, personal recording device, or any other synced device in range has begun recording and to transmit a communication signal to any synced recording device in range indicating that the recording device should begin recording and to further transmit a time stamp to synced recording devices for corroborating recorded data.

A scalable in-vehicle video system and a signal control apparatus are provided. The signal control apparatus of the scalable in-vehicle video system can be a standalone device that is used to connect with various peripheral devices for transmitting signals. The signal control apparatus can implement an audiovisual hub device, and can be disposed in a vehicle. The signal control apparatus includes a control unit, multiple interfaces, at least one communication port, and multiple wireless or wired connection ports. The signal control apparatus connects with a sensor and an external circuit via the multiple interfaces, connects with an external system via the communication port, and connects with multiple video recorders via the connection ports. Audiovisual files generated by the video recorders can be stored to a memory module of the signal control apparatus, or can be transmitted to the external system through the signal control apparatus.

A method and system includes a plurality of video players and a plurality of remote control devices for implementing follow-me functionalities. Each remote control device has a unique ID and can control all the video players. The method and system receives a first control signal from a first remote control device to interrupt playback of a program by a first video player, interrupts playback of the program at the first video player, and stores the ID of the first remote control device and the status of the playback of the program. The method and system then receives a second control signal from a second remote control device to resume playback of the program at a second video player, checks the stored ID and the ID of the second remote control device, and if the two IDs are identical, resumes playback of the program at the second video player according to the status.

A multiple recording device management system including an intermediate multiple recording device managing apparatus, a vehicle recording device mounted in a police vehicle and synced to the managing apparatus, and a personal recording device carried by a police officer and wirelessly synced to the managing apparatus. The managing apparatus is operable to detect when the vehicle recording device, personal recording device, or any other synced device in range has begun recording and to transmit a communication signal to any synced recording device in range indicating that the recording device should begin recording and to further transmit a time stamp to synced recording devices for corroborating recorded data.

The invention relates to a system and method for remote activation of a storage operation of pictorial information. According to the invention, it involves a wearable sensor device, comprising at least one sensor providing sensor signals, a processing unit for running computer programs, a first memory unit for storing instructions for said computer programs and a wireless signaling unit for communicating with external devices over a wireless link. The system further comprises at least one second digital device comprising a recording apparatus adapted to be set in a mode of continuous capture of pictorial information, a second memory unit, and a wireless signaling system for communicating with external devices over a wireless link. The processing unit in the wearable sensor device is adapted to send commands over said wireless link by means of one-way transmission to said second digital device to trigger, in response to said commands, storage of at least part of said continuously captured pictorial information in the memory of said at least one second device.

An adaptive display backlight control system and a method for controlling the backlight are provided. The system includes a microcontroller unit, a human presence sensor, a human attention sensor and a backlight regulation module. The microcontroller unit determines a driving signal applied to a backlight module of a display according to a signal relating to if a person is present in front of the display as provided by the human-presence sensor, and a signal relating to if the person pays attention to the display as provided by the human attention sensor. Further, the microcontroller unit can obtain information of ambient light around the display from an ambient light sensor, and then relies on the information of ambient light to regulate the driving signal applied to the backlight module.

The present invention relates to the technical field of record players, and in particular, to a record player with repeatable playback, including a fixing base; and a tone arm body, a tone arm shaft, a circuit control assembly, a lifting and sliding mechanism, and a horizontal swinging mechanism that are disposed on the fixing base respectively. An upper end of the tone arm shaft is connected to one end of the tone arm body, and the tone arm shaft is rotatably disposed on the fixing base. The circuit control assembly includes a support frame; and a control circuit board, an encoder component, a rotating arm positioning component, and an induction gear that are disposed on the support frame. A gear transmission structure is disposed on one side, close to the gear, of the rotating arm positioning component.

A sensor device and an operating method thereof are provided. The sensor device includes a microcontroller and a sensor module. The microcontroller performs the operating method. Firstly, the sensor device enters a configuration mode after being activated. The sensor device enters a detection mode after a timeout period. The sensor device is on standby for detecting if any event occurs under the detection mode. When any event is detected, a trigger signal is generated, and the sensor device enters a broadcast mode to broadcast the trigger signal. After another timeout period, the sensor device enters the detection mode again, and is on standby for detecting if the event is restored to a default state. When the event is restored to the default state, the sensor device is reset for detecting if the event occurs.