Abstract: The disclosure provides a method, device and system for recording information, a storage medium and a processing unit. The method for recording information includes that: non-Audio/Video (AV) information forming a preset association relationship with a first target file is acquired, wherein the first target file includes AV information; and the AV information and the non-AV information are synchronously recorded according to an information synchronization condition.

Abstract: Disclosed is a method and system for synchronously reproducing multi-media multi-information. The method is a method of combining a plurality of relevant files or a plurality of information streams that have an associated information relationship using a “multi-information modulation unit”, and then synchronously reproducing the relevant files or the information streams using a dedicated player capable of synchronously reproducing and playing back the multi-information.

Abstract: An operational amplifier, a driving interface, a measurement and control device, a driving circuit and a driver are provided. The operational amplifier is used as at least one of an input interface and output interface, and when the operational amplifier corresponds to one transistor (Q), an external circuit of the transistor further includes: a first port (Vdj), connected with a base (B) of the transistor (Q) through a first resistor (Rb); a second port (I/Oe), connected with an emitter E of the transistor (Q); a third port (I/Oc), connected with a collector (C) of the transistor (Q); and a fourth port (GND), connected with the emitter (E) of the transistor (Q) through a second resistor and used as a public port for signal input and signal output.

Abstract: The disclosure provides a method, device and system for recording information, a storage medium and a processing unit. The method for recording information includes that: non-Audio/Video (AV) information forming a preset association relationship with a first target file is acquired, wherein the first target file includes AV information; and the AV information and the non-AV information are synchronously recorded according to an information synchronization condition.

Abstract: An operational amplifier, a driving interface, a measurement and control device, a driving circuit and a driver are provided. The operational amplifier is used as at least one of an input interface and output interface, and when the operational amplifier corresponds to one transistor (Q), an external circuit of the transistor further includes: a first port (Vdj), connected with a base (B) of the transistor (Q) through a first resistor (Rb); a second port (I/Oe), connected with an emitter ? of the transistor (Q); a third port (I/Oc), connected with a collector (C) of the transistor (Q); and a fourth port (GND), connected with the emitter (E) of the transistor (Q) through a second resistor and used as a public port for signal input and signal output.

Abstract: Disclosed is a method and system for synchronously reproducing multi-media multi-information. The method is a method of combining a plurality of relevant files or a plurality of information streams that have an associated information relationship using a “multi-information modulation unit”, and then synchronously reproducing the relevant files or the information streams using a dedicated player capable of synchronously reproducing and playing back the multi-information.