Abstract:
Methods, systems, and apparatus for enabling a power path between a power source and a host device via an accessory. A host device may send, to an accessory arranged within the power path, via a first data pin arranged in the host device, a request for an accessory identifier. The accessory identifier identifies the accessory. The host device may then determine whether the accessory identifier is received from the accessory within a specified period of time or whether a received accessory identifier is valid. If the accessory identifier is not received from the accessory within the specified period of time, or a received accessory identifier is not valid, the host device sends a new request for the accessory identifier to the accessory via a second data pin different than the first data pin. CA) __ _ __ _
Abstract:
Verfahren, Systeme und Vorrichtungen zum Einrichten eines Leistungspfades zwischen einer Leistungsquelle und einer Hostvorrichtung über ein Zubehör. Eine Hostvorrichtung kann eine Anfrage für einen Zubehöridentifikator an ein Zubehör, das innerhalb eines Leistungspfades angeordnet ist, über einen ersten Datenpin, der innerhalb der Hostvorrichtung angeordnet ist, senden. Der Zubehöridentifikator identifiziert das Zubehör. Die Hostvorrichtung kann dann feststellen, ob der Zubehöridentifikator innerhalb einer bestimmten Zeitspanne von dem Zubehör empfangen worden ist oder, ob ein empfangener Zubehöridentifikator gültig ist. Wenn der Zubehöridentifikator von dem Zubehör nicht innerhalb der bestimmten Zeitspanne empfangen worden ist oder, wenn ein empfangener Zubehöridentifikator nicht gültig ist, sendet die Hostvorrichtung eine neue Anfrage für den Zubehöridentifikator an das Zubehör über einen zweiten Datenpin, der anders ist als der erste Datenpin.
Abstract:
Methods, systems, and apparatus for determining whether an accessory includes particular circuitry. A host device may measure a first voltage and a second voltage received from an accessory, where the voltages are provide through the accessory from a power source. Before measuring the second voltage, the host device may send an instruction to the accessory instructing the accessory to alter an impedance of the power path between the power source and the host device, and the host device may draw at least a threshold amount of current from the power source via the accessory. The host device may then determine whether the accessory includes particular circuitry based on the relationship between the first voltage and the second voltage. MEASURE A FIRST VOLTAGE RECEIVED FROM AN ACCESSORY 422 SEND AN INSTRUCTION TO THE ACCESSORY TO ALTER AN IMPEDANCE, AT THE ACCESSORY, OF A POWER PATH BETWEEN A POWER SOURCE AND A HOST DEVICE SINK CURRENT FROM THE POWER SOURCE VIA THE ACCESSORY MEASURE A SECOND VOLTAGE RECEIVED FROM THE ACCESSORY N FIRST VOLTAGE > SECOND VOLTAGE? ACCESSORY DOES NOT INCLUDE POWER LIMITING CIRCUITRY Y ACCESSORY INCLUDES POWER LIMITING CIRCUITRY
Abstract:
An adapter 40 for connecting an accessory 20 (e.g. clock radio, automotive radio, storage device) to a portable electronic device 30 (e.g. portable media player) includes a first (e.g. eight contact, dual orientation) plug connector 100 compatible with a receptacle connector 140 of the portable electronic device and a second receptacle connector 120 compatible with a (e.g. 30-pin) connector 22 of the accessory. The connectors of the accessory and the portable electronic device are otherwise incompatible with each other. Authentication circuitry 108c of the adapter provides two levels of authentication. First, the adapter authenticates itself to the portable electronic device. If this first authentication is successful, then the adapter authenticates the accessory to the adapter. The adapter also includes conversion circuitry 200 that converts signals and voltages transmitted between accessory 20 and host 30 and may include audio/visual converter 207, data converter 208 and power converter 209. If the first and second levels of authentication are successfully completed a power path and/or a communication between the accessory and host device may be enabled.
Abstract:
Ein Adapter zum Verbinden eines Zubehörs mit einer tragbaren elektronischen Vorrichtung umfasst einen ersten Steckverbinder, welcher mit einem Steckverbinder der tragbaren elektronischen Vorrichtung kompatibel ist, und einen zweiten Steckverbinder, welcher mit einem Steckverbinder des Zubehörs kompatibel ist. Die Steckverbinder des Zubehörs und der tragbaren elektronischen Vorrichtung sind ansonsten inkompatibel miteinander. Der Adapter stellt zwei Level von Authentifizierung bereit. Zuerst authentifiziert sich der Adapter selbst gegenüber der tragbaren elektronischen Vorrichtung. Wenn diese erste Authentifizierung erfolgreich ist, dann authentifiziert der Adapter das Zubehör gegenüber dem Adapter.
Abstract:
Systems and methods for configuring contacts of a first connector includes detecting mating of a second connector with the first connector and in response to the detection, sending a command over one of the contacts and waiting for 5 a response to the command. If a valid response to the command is received, the system determines the orientation of the second connector. The response also includes configuration information for contacts in the second connector. The system then configures some of the other contacts of the first connector based on the determined orientation and configuration information of the contacts of the second 10 connector.
Abstract:
An adapter for providing connectivity between a host connector of a host device and an accessory connector of an accessory that is incompatible with the host connector is described. The adapter can include a host interface connector that is compatible with the host connector, and an accessory interface connector that is compatible with the accessory connector of the accessory. The adapter may further include an identification module that can provide adapter identification information to a host device connected to the host interface connector, and may also include an authentication module that can authenticate an accessory connected to the accessory interface connector. r----. 800 - 34 CIRCUITRY 820 Power COMM 823Data/Ctrl gi Media |AUTH. 810 Adapter ID Accessory ID 7:14 Fig. 8A 00
Abstract:
A dual orientation connector having a connector tab with first and second major opposing sides and a plurality of electrical contacts carried by the connector tab. The plurality of contacts includes a first set of external contacts formed at the first major side and a second set of external contacts formed at the second major side. The first plurality of contacts are symmetrically spaced with the second plurality of contacts and the connector tab is shaped to have 180 degree symmetry so that it can be inserted and operatively coupled to a corresponding receptacle connector in either of two insertion orientations.
Abstract:
Electronic devices may have batteries that power internal circuitry. A power converter may connect to an input-output port in an electronic device to deliver power to the electronic device. Battery charging circuitry in the electronic device may be used to charge the battery in an electronic device while power is delivered from the power converter. The power converter may have load detection circuitry. When an output load is present, the power converter operates in an active mode and delivers power to the electronic device. When the output load is not present, the power converter enters a low-power standby mode. The electronic device has switching circuitry that periodically either electrically couples or electrically isolates the input-output port from internal circuitry. When the input-output port is isolated, the power converter senses that no output load is present and enters the standby state to conserve power.
Abstract:
A power converter is provided that has an alternating-current (AC) to direct-current (DC) switched- mode power converter circuit that converts alternating- current power into direct-current power for powering an attached electronic device. Power can be conserved by automatically placing the power converter circuit in a low-power standby mode of operation whenever the electronic device is detached from the power converter. A monitoring circuit can be powered by a capacitor or other energy storage element while the power converter is operating in the standby mode. If the monitoring circuit detects an output voltage change that is indicative of attachment of the electronic device or if the storage element needs to be replenished, the monitoring circuit can place the power converter circuit in an active mode of operation.