Patent ID: 8141782

Claim:
A device comprising: a card connector which can interchangeably couple a holographic memory card or an electronic memory card to a card reader and/or writer which can then read and/or write to the coupled holographic memory card or electronic memory card, the card connector comprising: a memory card receiving section which can interchangeably receive the holographic memory card or the electronic memory card; one or more card positioning members which cooperate with one or more card locating members on the coupled holographic memory card or the coupled electronic memory card to thereby repeatedly position the coupled holographic memory card or the coupled electronic memory card each time the holographic memory card or the electronic memory card is coupled to the card reader and/or writer, and is in a fully inserted card position, so that data can be read from and/or written to the coupled holographic memory card or the coupled electronic memory card; and a retainer and/or ejection mechanism for releasably engaging one or more corresponding retainer and/or rejection features on the holographic memory card or the electronic memory card when inserted into the memory card receiving section; wherein the retainer and/or ejection mechanism comprises a slider member having: (a) a first engagement member to releasably engage a corresponding first rejection and/or retention feature on the holographic memory card or the electronic memory card, and (b) a second engagement member to releasably engage a corresponding second rejection and/or retention feature on the holographic memory card or the electronic memory card; and wherein the slider member has a downwardly facing cam recess, and wherein the retainer and/or ejection mechanism further comprises a clip member which the slider member moves laterally back and forth with respect to, a generally U-shaped link having a generally horizontally extending shaft, a first prong extending upwardly from one end of the shaft, and a second prong extending upwardly from the other end of the shaft, wherein the lateral positioning of the link is fixed and limited relative to the clip member by the first prong, and wherein the second prong is received by and moves within the cam recess to lock the slider member in a relatively fixed position to provide a fully inserted card position, or to unlock the slider member so that the slider member may move laterally back and forth between a card fully ejected position and fully inserted card position.