Universal Electronics Inc.

Uei Cayman Inc.

Zilog, Inc.

Ixys Ch Gmbh

Daniel SauFu Mui

Oscar C Miramontes

Jonathan Lee

Joshua J Nekl

Alexander Marquez

A universal remote control (URC) is programmed to control a particular type and make of electronic consumer device using a graphical user interface. A plurality of images is displayed on the user-interface. Each image of the plurality of images is a digital photograph of an electronic consumer device or a remote control device usable to control the corresponding electronic consumer device. A user selects the digital photograph of the particular type and make of electronic consumer device or its corresponding remote control device. Codeset information associated with the selected device is transmitted to the URC such that the URC is programmed to control the selected device. If the codeset information is a codeset identifier, then it is displayed on the user interface. The user enters the codeset identifier into the URC such that the URC is programmed to control the selected device.

Graphical user interface for programming universal remote control devices

A web server uses selection criteria for identifying an electronic consumer device to identify a codeset likely to be appropriate for communicating with the electronic consumer device and data indicative of at least one code of the identified codeset is provided to a remote control device whereupon the data indicative of the at least one code of the identified codeset is automatically activated by the remote control device.

Interactive web-based codeset selection and development tool

Upon receiving a keystroke indicator signal from a remote control device, a key code generator device identifies a codeset usable to communicate with a selected consumer device. The keystroke indicator signal contains an indication of a pressed key, which corresponds to a function of the selected consumer device. Using the identified codeset and the key indication, the key code generator device generates a key code and modulates that key code onto a radio frequency carrier signal, thereby generating a first key code signal. The remote control device receives the first key code signal from the key code generator device and modulates the key code onto an infrared frequency carrier signal, thereby generating a second key code signal. The remote control device relays the key code to the selected consumer device in the second key code signal. The key code causes the selected consumer device to perform the desired function.

Relaying key code signals through a remote control device

An infrared LED of an IrDA transceiver module is usable to transmit IrDA signals as well as RC control signals. When making an IrDA transmission, the IrDA LED is driven with a lower amount of current. When making an RC transmission, the IrDA LED is driven with an increased amount of current such that infrared emissions received by an RC receiver are of adequate power to be received as RC control signals. A current-limiting circuit allows more LED current to flow the longer current is allowed to flow through the IrDA LED. By controlling the durations of infrared bursts in the RC transmission, the average LED current during infrared bursts of RC transmissions is controlled. Using this technique allows the IrDA module to be used to transmit RC signals at different transmission power settings. To reduce power consumption, the minimum transmission power necessary to engage in RC communications is used.

Controlling transmission power in an IrDA/RC transmitter circuit

A universal remote control (URC) is programmed to control a particular type and make of electronic consumer device using a graphical user interface. A plurality of images is displayed on the user interface. Each image of the plurality of images is a digital photograph of an electronic consumer device or a remote control device usable to control the corresponding electronic consumer device. A user selects the digital photograph of the particular type and make of electronic consumer device or its corresponding remote control device. Codeset information associated with the selected device is transmitted to the URC such that the URC is programmed to control the selected device. If the codeset information is a codeset identifier, then it is displayed on the user interface. The user enters the codeset identifier into the URC such that the URC is programmed to control the selected device.

A hypertext document containing a selection criterion for a desired codeset is transmitted from a web server to a web client on the computer of a user of an electronic consumer device. The user selects a desired codeset and sends a designation of the selection criterion from the web client on his computer back to the web server. The designation of the selection criterion is used to select the desired codeset from a central database of codesets. The desired codeset is then transmitted from the web server to the web client on the user's computer. A pin of an integrated circuit in the user's remote control device is coupled to a single-wire communication bus. The user's remote control device is coupled to the user's computer via the single-wire communication bus. The desired codeset is then transmitted from the user's computer over the single-wire communication bus to the remote control device.

Transmitting a codeset over a single-wire bus from a computer to a remote control device

A keypad encoding circuit contains a voltage dividing network and an integrated circuit. The voltage dividing network includes a string of resistors that generates an encoding signal voltage. The integrated circuit converts the encoding signal voltage into a digital value indicative of which of the keys has been pressed. The cost of the voltage dividing network is reduced by forming the resistors from a layer of conductive carbon and avoiding the cost of providing discrete resistors. Each resistor has the same resistance even where the dimensions of the conductive carbon patches that form the resistors vary. Providing the resistors does not involve additional manufacturing cost because the resistors are made in the same step as are the landing pads of the voltage dividing circuit. Manufacturing costs associated with etched printed circuit board layers are avoided because inexpensive printed layers are used to realize the required traces and resistors.

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San Jose, CA, United States of America

Daniel SauFu Mui