Abstract:
Verfahren (800), umfassend:Feststellen (804), dass ein Kabel mit einem Anschluss (706) einer elektronischen Vorrichtung (754) gekoppelt ist;Abkoppeln (806) eines leistungsversorgenden Kabelempfangschips („Power Rx“) (732) der elektronischen Vorrichtung (754) von einem Nichtleistungskabelempfangschip („Headset Rx“) (742) der elektronischen Vorrichtung (754);Versuchen (808), einen Nichtleistungskabelsendechip („Headset Tx“) des Kabels zu authentifizieren; undBeibehalten (810) der Abkopplung des Power Rx (732) als Antwort auf die erfolgreiche Authentifizierung (808) des Headset Tx.
Abstract:
The invention is generally directed to providing protection circuitry to selectively handle power-providing cables and headset cables that can couple to the same port of an electronic device (eg a 3.5mm headphone jack 506, fig.5). The device includes a Headset Rx circuit 742 to communicate with a headset cable and a Power Rx circuit 732 to communicate with a power-providing cable. As the Headset Rx circuit and the Power Rx circuit can be coupled to the same contact of the device's port, these circuits may prevent one another from operating correctly or may damage one another. Accordingly, a first contact 760 of the port is used to determine when a cable with a circuit is connected to the port and a second contact 764 is used to determine the cable type. When a headset cable (504, fig.5) is coupled to the device and authenticated by the Headset Rx circuit, a power control circuit 750 disconnects the Power Rx chip. The Headset Rx circuit may similarly be disconnected when a power-providing cable (502, fig.5) is coupled to the device and authenticated by the Power Rx circuit.
Abstract:
Dies bezieht sich allgemein auf die Angabe einer Schutzschaltung zur selektiven Handhabung von leistungsversorgenden Kabeln und Headset-Kabeln, die mit demselben Anschluss einer elektronischen Vorrichtung gekoppelt werden können. In einigen Ausführungsformen kann die Vorrichtung einen Headset-Rx Chip zur Kommunikation mit dem Headset-Kabel und einen Power-Rx Chip zur Kommunikation mit dem leistungsversorgenden Kabel umfassen. Da der Headset-Rx Chip und der Power-Rx Chip mit demselben Kontakt des Anschlusses gekoppelt werden können, können sich diese Chips gegenseitig daran hindern, richtig zu funktionieren, oder sie können sich gegenseitig beschädigen. Infolgedessen kann, in einigen Ausführungsformen, festgestellt werden, ob ein Headset-Kabel oder ein leistungsversorgendes Kabel mit der Vorrichtung gekoppelt ist. Wenn ein Headset-Kabel mit der Vorrichtung gekoppelt ist, kann die Schutzschaltung den Power-Rx Chip abkoppeln. Gleichermaßen kann die Schutzschaltung den Headset-Rx Chip abkoppeln, wenn ein leistungsversorgendes Kabel mit der Vorrichtung gekoppelt ist.
Abstract:
Handshaking circuits (142) are provided in a communications cable and in a device (150) operable to be mated with the communications cable. Before a device (150) can utilize the power supply signal of such a communications channel, the two handshaking circuits must sufficiently identify one another over a power supply signal with a decreased voltage. The decreased voltage allows for a cable plug to be provided with a safe, protected power that cannot cause harm to a human. The decreased voltage also reduces the chance that a device can receive a primary power supply signal from the cable before the device sufficiently identifies itself.; Accordingly, a laptop may be connected to a portable music player, but the voltage of the power supply signal provided by the laptop to the cable may be decreased on-cable until the handshaking circuit of the portable music player sufficiently performs a handshaking operation with a on-cable handshaking circuit.
Abstract:
Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path.
Abstract:
Handshaking circuits are provided in a communications cable and in a device operable to be mated with the communications cable. Before a device can utilize the power supply signal of such a communications channel, the two handshaking circuits must sufficiently identify one another over a power supply signal with a decreased voltage. The decreased voltage allows for a cable plug to be provided with a safe, protected power that cannot cause harm to a human. The decreased voltage also reduces the chance that a device can receive a primary power supply signal from the cable before the device sufficiently identifies itself. Accordingly, a laptop may be connected to a portable music player, but the voltage of the power supply signal provided by the laptop to the cable may be decreased on-cable until the handshaking circuit of the portable music player sufficiently performs a handshaking operation with a on-cable handshaking circuit.
Abstract:
Handshaking circuits are provided in a communications cable and in a device operable to be mated with the communications cable. Before a device can utilize the power supply signal of such a communications channel, the two handshaking circuits must sufficiently identify one another over a power supply signal with a decreased voltage. The decreased voltage allows for a cable plug to be provided with a safe, protected power that cannot cause harm to a human. The decreased voltage also reduces the chance that a device can receive a primary power supply signal from the cable before the device sufficiently identifies itself. Accordingly, a laptop may be connected to a portable music player, but the voltage of the power supply signal provided by the laptop to the cable may be decreased on-cable until the handshaking circuit of the portable music player sufficiently performs a handshaking operation with a on-cable handshaking circuit.
Abstract:
The invention is generally directed to providing protection circuitry to selectively handle power-providing cables and headset cables that can couple to the same port of an electronic device (eg a 3.5mm headphone jack 506, fig.5). The device includes a Headset Rx circuit 742 to communicate with a headset cable and a Power Rx circuit 732 to communicate with a power-providing cable. As the Headset Rx circuit and the Power Rx circuit can be coupled to the same contact of the device's port, these circuits may prevent one another from operating correctly or may damage one another. Accordingly, a first contact 760 of the port is used to determine when a cable with a circuit is connected to the port and a second contact 764 is used to determine the cable type. When a headset cable (504, fig.5) is coupled to the device and authenticated by the Headset Rx circuit, a power control circuit 750 disconnects the Power Rx chip. The Headset Rx circuit may similarly be disconnected when a power-providing cable (502, fig.5) is coupled to the device and authenticated by the Power Rx circuit.
Abstract:
Procedimiento para regular el suministro de potencia entre un primer dispositivo (140) y un segundo dispositivo(150), cuyo procedimiento se caracteriza por: recibir potencia en el primer dispositivo (140), comprendiendo dicho primer dispositivo (140) circuitos deestablecimiento de conexión (142) que pueden funcionar para proporcionar selectivamente una señal de suministrode potencia que incluye una primera característica o una segunda característica al segundo dispositivo (150),dependiendo de si se ha detectado una serie de impulsos de corriente predeterminados en la señal de suministro depotencia, comprendiendo el segundo dispositivo circuitos que pueden funcionar para introducir la serie de impulsosde corriente predeterminados en la señal de suministro de potencia; controlar, en los circuitos de establecimiento de conexión (142) la señal de suministro de potencia para determinar sila serie de impulsos de corriente predeterminados están siendo recibidos; facilitar la señal de suministro de potencia que tiene la primera característica al segundo dispositivo (150) cuando laserie de impulsos de corriente predeterminados no están siendo recibidos en la señal de suministro de potencia; yfacilitar la señal de suministro de potencia que tiene la segunda característica al segundo dispositivo (150) mientrasla serie de impulsos de corriente predeterminados están siendo recibidos en la señal de suministro de potencia.