Abstract: Described is a remote control method of a multi-mode remote controller, comprising the following steps of: determining a current control mode, the remote controller comprising various control modes; obtaining a touch control signal of a user on a touch screen; and analyzing the touch control signal, generating a remote control instruction corresponding to the touch control signal under the current control mode, and sending the instruction to a user terminal, so that the user terminal operates currently displayed content. It is further provided a multi-mode remote controller, a user terminal and a system. Seamless automatic switching among multiple control modes in the remote controller with a touch screen can be realized, so as to meet various interaction requirements of different kinds of users.

Abstract: A method, a device and a system for light remote control positioning. Position coordinates of a light beam spot can be obtained by a light sensing film, so that remote control of interface elements can be realized. The method comprises the following steps: sensing, by means of a light sensing film covered on a display screen of a receiving terminal device, a light beam spot formed on the light sensing film by a light beam that is emitted by a transmitting terminal device (S101); and extracting position parameters of the light beam spot on the light sensing film, which are sensed by the light sensing film, and calculating out the position coordinates of the light beam spot based on the position parameters.

Abstract: Described is a remote control method of a multi-mode remote controller, comprising the following steps of: determining a current control mode, the remote controller comprising various control modes; obtaining a touch control signal of a user on a touch screen; and analyzing the touch control signal, generating a remote control instruction corresponding to the touch control signal under the current control mode, and sending the instruction to a user terminal, so that the user terminal operates currently displayed content. It is further provided a multi-mode remote controller, a user terminal and a system. Seamless automatic switching among multiple control modes in the remote controller with a touch screen can be realized, so as to meet various interaction requirements of different kinds of users.

Abstract: A system for playing digital television. A server presets a video on demand (VOD) protocol specification, and transmits, according to the VOD protocol specification, a VOD service list and additional information to a digital television receiving terminal. The receiving terminal presets the VOD protocol specification, and stores, according the VOD protocol specification, the received VOD service list and additional information in an on-demand program database. Relative programs in the on-demand program database are matched according to a matching mark input by a user and displayed. In response to a program on-demand request of the user, the receiving terminal obtains the television program from the server and plays that program.

Abstract: A remote control technique in which the current control mode of a remote controller having a plurality of control modes is determined. When a remote control command of the remote controller is received, the operation mode for currently displayed contents is determined according to the control mode and the remote control command. The remote controller is a multi-mode remote controller whose plural control modes can be switched, thereby accommodating different requirements of various users.