Patent classifications
H03G1/02
Method and structure for controlling bandwidth and peaking over gain in a variable gain amplifier (VGA)
A method of controlling bandwidth and peaking over gain in a variable gain amplifier (VGA) device and structure therefor. The device includes at least three differential transistor pairs configured as a cross-coupled differential amplifier with differential input nodes, differential bias nodes, differential output nodes, a current source node, and two cross-coupling nodes. The cross-coupled differential amplifier includes a load resistor coupled to each of the differential output nodes and one of the cross-coupling nodes, and a load inductor coupled to the each of the cross-coupling nodes and a power supply rail. A current source is electrically coupled to the current source node. The cross-coupling configuration with the load resistance and inductance results in a lower bandwidth and lowered peaking at low gain compared to high gain. Further, the tap point into the inductor can be chosen as another variable to “tune” the bandwidth and peaking in a communication system.
Method and structure for controlling bandwidth and peaking over gain in a variable gain amplifier (VGA)
A method of controlling bandwidth and peaking over gain in a variable gain amplifier (VGA) device and structure therefor. The device includes at least three differential transistor pairs configured as a cross-coupled differential amplifier with differential input nodes, differential bias nodes, differential output nodes, a current source node, and two cross-coupling nodes. The cross-coupled differential amplifier includes a load resistor coupled to each of the differential output nodes and one of the cross-coupling nodes, and a load inductor coupled to the each of the cross-coupling nodes and a power supply rail. A current source is electrically coupled to the current source node. The cross-coupling configuration with the load resistance and inductance results in a lower bandwidth and lowered peaking at low gain compared to high gain. Further, the tap point into the inductor can be chosen as another variable to “tune” the bandwidth and peaking in a communication system.
DEVICE AND METHOD FOR ADJUSTING AN OUTPUT TO AN AUDIO PORT BASED ON A DETERMINED SENSITIVITY
A device and method for adjusting an output to an audio port based on a determined sensitivity is provided. The device comprises a processor, an audio port, and an electrical measurement device configured to measure electrical properties of an external device plugged into the audio port over a range of frequencies. Using the electrical measurement device, one or more electrical properties of the external device plugged into the audio port are measured at a plurality of frequencies. A sensitivity of the external device is determined using the using the one or more electrical properties of the external device measured using the electrical measurement device. An output to the audio port is adjusted based on the sensitivity.
Processing Audio with an Audio Processing Operation
An apparatus or method to allow a user to control an audio processing operation of an internal and/or external microphone(s). The method includes providing a configurable user interface which enables mixing of audio signals through interaction with the user interface. The audio signals may be captured with internal or external micorphones.
Audio-Based and Video-Based Social Experiences in a Networked Media Playback System
An example video communication device is configured to (i) receive, from a computing platform via a wide area network (WAN), video and audio content corresponding to a video call, (ii) render the video content via at least one graphical display and render the audio content via at least one speaker, (iii) while rendering the video and audio content, determine that a user of the video communication device is located more closely to an audio playback device than to the video communication device, where the audio playback device is connected to the video communication device via a local area network (LAN), and (iv) based on determining that the user is located more closely to the audio playback device than to the video communication device, transmit the received audio content to the audio playback device via the LAN and cause the audio playback device to play back the audio content.
Audio-Based and Video-Based Social Experiences in a Networked Media Playback System
An example video communication device is configured to (i) receive, from a computing platform via a wide area network (WAN), video and audio content corresponding to a video call, (ii) render the video content via at least one graphical display and render the audio content via at least one speaker, (iii) while rendering the video and audio content, determine that a user of the video communication device is located more closely to an audio playback device than to the video communication device, where the audio playback device is connected to the video communication device via a local area network (LAN), and (iv) based on determining that the user is located more closely to the audio playback device than to the video communication device, transmit the received audio content to the audio playback device via the LAN and cause the audio playback device to play back the audio content.
PLAYBACK OF GENERATIVE MEDIA CONTENT
Generative media content (e.g., generative audio) can be played back across multiple playback devices concurrently. A generative content group coordinator device can receive input parameters, which can include sensor data, media content, or other such input. The coordinator device can generate first and second generative media content streams, each of which can be transmitted to first and second playback devices, respectively. The first and second playback devices can play back the first and second streams of generative media content concurrently.
PLAYBACK OF GENERATIVE MEDIA CONTENT
Generative media content (e.g., generative audio) can be played back across multiple playback devices concurrently. A generative content group coordinator device can receive input parameters, which can include sensor data, media content, or other such input. The coordinator device can generate first and second generative media content streams, each of which can be transmitted to first and second playback devices, respectively. The first and second playback devices can play back the first and second streams of generative media content concurrently.
Techniques for Enabling Interoperability between Media Playback Systems
A device is configured to (i) receive media content from a media source, (ii) generate a first series of frames including first portions of the media content and first playback timing information, (iii) generate a second series of frames including second portions of the media content and second playback timing information, (iv) transmit the first series of frames to a first playback device in a synchrony group for playback of the first portions of the media content in accordance with the first playback timing information, and (v) transmit the second series of frames to a second playback device in the synchrony group for playback of the second portions of the media content in accordance with the second playback timing information such that the media content is played back in synchrony by the synchrony group.
Techniques for Enabling Interoperability between Media Playback Systems
A device is configured to (i) receive media content from a media source, (ii) generate a first series of frames including first portions of the media content and first playback timing information, (iii) generate a second series of frames including second portions of the media content and second playback timing information, (iv) transmit the first series of frames to a first playback device in a synchrony group for playback of the first portions of the media content in accordance with the first playback timing information, and (v) transmit the second series of frames to a second playback device in the synchrony group for playback of the second portions of the media content in accordance with the second playback timing information such that the media content is played back in synchrony by the synchrony group.