Abstract: In an arrangement including a remote control device and at least a first electronic device, the remote control device includes a first memory for storing a set of code data for controlling a further electronic device, the first memory being connected to an input of a signal generator for supplying the code data to the input, the signal generator generating, on the basis of the code data, control signals for controlling the further electronic device, and transmitting these control signals to the further electronic device. The first electronic device includes a data input for receiving data from the remote control device, and the remote control device includes a code data output unit connected to the first memory. The code data output unit has a further input for receiving an upload signal and reads, under control of the upload signal, at least a subset of the set of code data from the first memory.

Abstract: A system including at least one host and at least one guest communicating with each other via a wireless medium and having structure for linking a selected host (10) to a selected guest (20). In order to be able to perform such selection and such linking in a simplified manner, the host (10) has structure for establishing the link on the double condition that the guest (20) transmits a declaration signal (50) and that this declaration signal (50) is transmitted from within a declaration area (40) of the host (10) which differs substantially from the normal operating area (60) of the guest/host pair. The selection and the linking of the host (10) and the guest (20) is performed simply by putting the selected guest (20) within the declaration area (40) of the selected host (10) and by triggering the transmission of a declaration signal (50) by the selected guest (20) from within this declaration area (40).

Abstract: In a method of operating a remote control system and in such a system comprising an RF transmission and receiving system and an IR transmission device the sub-carrier information of the IR signal is transmitted in the RF signal in a signal separate from the envelope information of the IR signal which is contained in a envelope signal.

Abstract: A method of and a system for upgrading a universal remote control with a command code of an electronic appliance are provided. The command code is downloaded from an internet server into a personal computer or set-top box, which is coupled to an infrared transmitter. The universal remote control is placed in front of the infrared transmitter and the command code is transferred to the universal remote control, for example in response to the user indicating a key, shown in a displayed picture of a control panel of the electronic appliance and associated with said command code.

Abstract: The invention relates to a system including an apparatus and a plurality of remote controls. Each remote control is equipped with a detector for detecting infrared signals from the other remote controls. The remote controls are capable of controlling the transmission of messages in dependence on a detection of signals from the other remote controls. In this way, collision between signals from different remote controls is prevented.

Abstract: In a method of operating a remote control system and in such a system comprising an RF transmission and receiving system and an IR transmission device the sub-carrier information of the IR signal is transmitted in the RF signal in a signal separate from the envelope information of the IR signal which is contained in a envelope signal.

Abstract: A system comprising at least one host and at least one guest communicating with each other via a wireless medium and having means for linking a selected host (10) to a selected guest (20). In order to be able to perform such selection and such linking in a simplified manner, the host (10) has means for establishing the link on the double condition that the guest (20) transmits a declaration signal (50) and that this declaration signal (50) is transmitted from within a declaration area (40) of the host (10) which differs substantially from the normal operating area (60) of the guest/host pair. The selection and the linking of the host (10) and the guest (20) is performed simply by putting the selected guest (20) within the declaration area (40) of the selected host (10) and by triggering the transmission of a declaration signal (50) by the selected guest (20) from within this declaration area (40).

Abstract: A wireless communication system comprises a guest (2) with a transmitter (3, 23) for transmitting infrared signals and a host (2) with a host_receiver (4, 24) for receiving an infrared signal (5, 25), both the guest and the host having an internal RS-232 port (28, 32). The guest comprises a data generator (26) for generating data, a modulator (30) for modulating said data and transferring said modulated data to the guest transmitter (23). The host comprises a demodulator (31) for demodulating the IR signal received by the host receiver. The guest (2, 21) comprises a coding function (27) to code data generated by the data generator in standard RS-232 format to reduce the maximum number of consecutive spaces in the signal sent. The demodulator of the host is coupled to the host receiver and the internal RS-232 port of the host to demodulate the modulated IR signals and to a main processor (34) coupled to the host internal RS-232 port.

Abstract: The invention relates to a system comprising an apparatus and a plurality of remote controls. Each remote control is equipped with a detector for detecting infrared signals from the other remote controls. The remote controls are capable of controlling the transmission of messages in dependence on a detection of signals from the other remote controls. In this way collision between signals from different remote controls is prevented.