Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

41 results about "Drop and insert" patented technology

In a multichannel transmission system, drop and insert is a process that diverts (drop) a portion of the multiplexed aggregate signal at an intermediate point, and introduces (insert) a different signal for subsequent transmission in the same position.

12-gear full-helical-tooth double-intermediate-shaft all-synchronizer gearbox

The invention relates to a 12-gear full-helical-tooth double-intermediate-shaft all-synchronizer gearbox which adopts a design of combination of a three-section closed structure shell and main and auxiliary gearboxes. The main gearbox is of a small-center-distance double-intermediate-shaft structure and gears adopt large-tooth wide helical teeth, so that the bearing capacities and the meshing stabilities of the gears are improved, the meshing noise is reduced and the bearing cavity of the main gearbox is improved. Due to the adoption of an input drop-and-insert structure, the gear speed ratio order difference is small and the fuel economy is high. Double-cone inertial type of synchronizers are respectively and additionally arranged at an inverted first gear and second and third gears, so that the friction moments of the synchronizers are increased, the gear shifting force is reduced and the impact and noise which are generated in the gear shifting process are reduced. Due to the adoption of a helical tooth planet gear system structure, the bearing capacities of the gears are improved; and a planet gear system is designed with the axial limit, so that the helical tooth axial force is offset inside. Due to the adoption of an installing form of an auxiliary gearbox synchronizer, the torque states of a planet carrier at the high and low gears in a certain range are optimized and the torsional strength of a planet carrier assembly is greatly improved. By the double-support design of both the front and rear ends of the planet carrier, the influence of finished automobile factors on the normal work of the inside of the gearbox is reduced.
Owner:SINO TRUK JINAN POWER

Multi-wavelength-multimodal reconfigurable drop-and-insert multiplexing chip

The invention discloses a multi-wavelength-multimodal reconfigurable drop-and-insert multiplexing chip. An input multimode waveguide is connected with input ends of a plurality of single-mode waveguides through a mode demultiplexer; output ends of the plurality of single-mode waveguides are connected with an output multimode waveguide through a mode multiplexer; each single-mode waveguide is provided with a wavelength division structure; the wavelength division structures are connected with a channel uploading waveguide and a channel downloading waveguide respectively; a micro-heating electrode is arranged above the wavelength division structure of each single-mode waveguide; a thermal tuning micro-ring resonator is formed by each micro-heating electrode and the corresponding wavelength division structure. According to the multi-wavelength-multimodal reconfigurable drop-and-insert multiplexing chip, drop-and-insert multiplexing of any wavelength in a C waveband under each mode channel is realized; flexible uploading and downloading problems of a channel are solved; the loss caused by channels which do not need to be downloaded is relatively small; the multi-wavelength-multimodal reconfigurable drop-and-insert multiplexing chip has the advantages of relatively good working performance, simple structure and compact layout.
Owner:ZHEJIANG UNIV

Novel bidirectional optical add-drop multiplexer

The invention discloses a novel bidirectional optical add-drop multiplexer. A common port of a first dense wavelength division multiplexing module is connected with an external first multiplexing port, a reflection port of the first dense wavelength division multiplexing module is connected with a reflection port of a second dense wavelength division multiplexing module, and a common port of the second dense wavelength division multiplexing module is connected with an external second multiplexing port. A first selection port of the first dense wavelength division multiplexing module and a first selection port of the second dense wavelength division multiplexing module are connected with two shunt ports of a first optical switch set of a D 1*2 optical switch respectively, and a second selection port of the first dense wavelength division multiplexing module and a second selection port of the second dense wavelength division multiplexing module are connected with two shunt ports of a second optical switch set of the D 1*2 optical switch respectively. A combining port of the first optical switch set of the D 1*2 optical switch is connected with an external first drop-and-insert port, and a combining port of the second optical switch set of the D 1*2 optical switch is connected with an external second drop-and-insert port. The novel bidirectional optical add-drop multiplexer can effectively lower insertion loss and improve system reliability.
Owner:桂林光隆科技集团股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products